Snowman Face led the whole market on Sep 20, up 1,163.6% to a 13,900 R$ average sale price, a 12,800 R$ jump. The steepest fall anywhere was ⏳[LIMITED] Super Sweet, a UGC Limited that gave up 2,735 R$ to finish at 65 R$, down 97.7%. Classic Limiteds had a heavy day, 241 of 502 movers up against 249 down, while UGC leaned the other way at 139 up against 110 down out of 358. Every Limited carrying a price adds up to 239.6 billion R$, and classics hold 92.6% of that value against UGC's 7.4%. The trading flips it: UGC moved 85.0% of the day's copies for 15.9% of the day's Robux.
Quick answer: Snowman Face was the biggest gainer on Sep 20, up 1,163.6% to 13,900 R$, and ⏳[LIMITED] Super Sweet was the biggest faller, down 97.7% to 65 R$. Across both markets 380 Limiteds rose and 359 fell, so risers had it by a nose.
"Sale avg" is the average price an item sold for that day, a "print" is one recorded sale, and "Sales" is how many times an item sold. RAP (Recent Average Price) is Roblox's smoothed running average of an item's sale prices. A Limited has a fixed number of copies that players resell; a classic Limited was made by Roblox and can be traded, while a UGC Limited was made by an independent creator and can only be resold. "Lowest ask" is the cheapest copy listed right now.
Winners: which Roblox Limiteds rose the most on Sep 20, 2026?
Classic Limiteds
| Item | Prev sale avg | Sep 20 sale avg | Change | % | Sales |
|---|---|---|---|---|---|
 Snowman Face by Roblox |
1,100 R$ (Sep 16) | 13,900 R$ | +12,800 R$ | +1,163.6% | 2 |
 Vans Checkerboard Era Necklace by Roblox |
500 R$ | 2,250 R$ | +1,750 R$ | +350.0% | 12 |
 Crystallized Power Mask by Roblox |
542 R$ | 1,545 R$ | +1,003 R$ | +185.1% | 22 |
 Green Trance by Roblox |
2,500 R$ (Sep 13) | 5,200 R$ | +2,700 R$ | +108.0% | 1 |
 Piephones by Roblox |
22,168 R$ (Sep 14) | 42,432 R$ | +20,264 R$ | +91.4% | 1 |
 Santa Paws Dog by Roblox |
550 R$ (Sep 17) | 1,000 R$ | +450 R$ | +81.8% | 1 |
 Halloween Baseball Cap 2014 by Roblox |
500 R$ | 897 R$ | +397 R$ | +79.4% | 3 |
 Homemade Robot by Roblox |
680 R$ (Sep 17) | 1,100 R$ | +420 R$ | +61.8% | 1 |
Snowman Face needs a caveat: two copies at an average of 13,900 R$, against a single 1,100 R$ print four days earlier, and a RAP of 11,926 R$ sitting far closer to the Sep 20 number. Vans Checkerboard Era Necklace moved 12 copies at 2,250 R$ and Crystallized Power Mask 22 at 1,545 R$, which is real breadth. Green Trance, Piephones, Santa Paws Dog and Homemade Robot each sold one copy.
UGC Limiteds
| Item | Prev sale avg | Sep 20 sale avg | Change | % | Sales |
|---|---|---|---|---|---|
 :3 tophat by Pancakity :P |
1,450 R$ (Sep 14) | 9,000 R$ | +7,550 R$ | +520.7% | 1 |
 Red Star Void Crown by The.Archive |
2,970 R$ (Sep 18) | 15,374 R$ | +12,404 R$ | +417.6% | 4 |
 Cosmic Legend Crown by VeL Outfit |
599 R$ (Sep 18) | 2,925 R$ | +2,326 R$ | +388.3% | 2 |
 Twitch Crown by RB Battles Games |
600 R$ (Sep 15) | 1,900 R$ | +1,300 R$ | +216.7% | 1 |
 Blue Valk by pagarusa |
679 R$ | 1,871 R$ | +1,192 R$ | +175.6% | 7 |
 Sparkle Time Clockwork Shades by 16950458 |
548 R$ | 1,500 R$ | +952 R$ | +173.7% | 1 |
 LUX COLLECTION – BLACK BY V4R by VAL4CRY STUDIO'S |
1,032 R$ | 2,500 R$ | +1,468 R$ | +142.2% | 1 |
 Silver Wings of the Imperial Skies by Queenѕ |
666 R$ (Sep 17) | 1,500 R$ | +834 R$ | +125.2% | 1 |
:3 tophat tops the UGC side at +520.7% on one sale, a 9,000 R$ print against 1,450 R$ on Sep 14, with only 520 copies ever made. The stronger story is Red Star Void Crown, four copies at an average of 15,374 R$ two days after trading at 2,970 R$. Cosmic Legend Crown's +388.3% came on two sales. Blue Valk was the busiest gain here at seven sales, and three of the eight rows sit in the crowns collection.
Losers: which Roblox Limiteds fell the most on Sep 20, 2026?
Classic Limiteds
| Item | Prev sale avg | Sep 20 sale avg | Change | % | Sales |
|---|---|---|---|---|---|
 Pumpkin Bucket by Roblox |
20,099 R$ (Sep 15) | 1,600 R$ | -18,499 R$ | -92.0% | 1 |
 Skull and Crossbones Fedora by Roblox |
3,500 R$ (Sep 15) | 1,000 R$ | -2,500 R$ | -71.4% | 1 |
 Buildermaster Headband by Roblox |
10,000 R$ | 3,000 R$ | -7,000 R$ | -70.0% | 1 |
 Azure Pinstripe Fedora by Roblox |
37,555 R$ | 12,000 R$ | -25,555 R$ | -68.0% | 2 |
 Gold 8-Bit Headphones by Roblox |
55,000 R$ | 22,000 R$ | -33,000 R$ | -60.0% | 1 |
 Robot Fedora by Roblox |
4,950 R$ (Sep 15) | 2,000 R$ | -2,950 R$ | -59.6% | 1 |
 Eldritch Harbinger of the Great Old Ones by Roblox |
1,398 R$ (Sep 16) | 584 R$ | -814 R$ | -58.2% | 1 |
 Sk8r Grl by Roblox |
2,000 R$ (Sep 13) | 850 R$ | -1,150 R$ | -57.5% | 2 |
Pumpkin Bucket is the worst classic at -92.0%, on one print: a single copy at 1,600 R$ after a 20,099 R$ trade five days earlier, against a RAP of 11,977 R$. A seasonal hat at an eighth of its RAP, six weeks before Halloween, tends to catch bargain hunters. Every one of these eight sold one or two copies, so most percentages here are one trader's decision. Azure Pinstripe Fedora is the steepest of the two-copy rows, both copies clearing 12,000 R$ against 37,555 R$.
UGC Limiteds
| Item | Prev sale avg | Sep 20 sale avg | Change | % | Sales |
|---|---|---|---|---|---|
 ⏳[LIMITED] Super Sweet by Panda Mania' [UGC] |
2,800 R$ (Sep 15) | 65 R$ | -2,735 R$ | -97.7% | 1 |
 Watermelon Valk by Maniblox's Royal Magesty |
2,000 R$ (Sep 13) | 150 R$ | -1,850 R$ | -92.5% | 1 |
 Cotton Candy Special Hair by trula |
780 R$ (Sep 13) | 65 R$ | -715 R$ | -91.7% | 1 |
 Korblox Genesis Horns by Kings |
1,200 R$ (Sep 13) | 105 R$ | -1,095 R$ | -91.3% | 8 |
 Limited U Chain by .L3NXQ |
599 R$ | 55 R$ | -544 R$ | -90.8% | 1 |
 VR Headset by MMR Studio |
1,000 R$ (Sep 17) | 100 R$ | -900 R$ | -90.0% | 1 |
 Deathsteel Warlord Helmet by Wospooki |
940 R$ (Sep 13) | 105 R$ | -835 R$ | -88.8% | 6 |
 Cyber Face Mask by Valkenheim |
650 R$ (Sep 14) | 95 R$ | -555 R$ | -85.4% | 1 |
Six of the eight UGC fallers sold a single copy, and most landed within a few Robux of the resale floor: 65 R$, 55 R$, 95 R$, 105 R$. Korblox Genesis Horns and Deathsteel Warlord Helmet carry real volume, eight and six copies, both settling at 105 R$ from 1,200 R$ and 940 R$ a week ago. Those are full liquidations, headed for cheap limiteds.
Biggest Robux Moves: which Limiteds gained and lost the most Robux on Sep 20, 2026?
Classic Limiteds
| Item | Prev sale avg | Sep 20 sale avg | Change | % | Sales |
|---|---|---|---|---|---|
 Brighteyes' Bloxy Cola Hat by Roblox |
419,999 R$ | 449,999 R$ | +30,000 R$ | +7.1% | 1 |
 Ice Valkyrie by Roblox |
370,000 R$ | 398,299 R$ | +28,299 R$ | +7.6% | 1 |
| Piephones by Roblox |
22,168 R$ (Sep 14) | 42,432 R$ | +20,264 R$ | +91.4% | 1 |
 Golden Teapot of Pwnage by Roblox |
39,950 R$ (Sep 18) | 58,999 R$ | +19,049 R$ | +47.7% | 1 |
 Stickmasterluke's Peanut Butter Sparkle Time by Roblox |
88,500 R$ | 43,000 R$ | -45,500 R$ | -51.4% | 1 |
 Silver King of the Night by Roblox |
382,950 R$ | 349,000 R$ | -33,950 R$ | -8.9% | 2 |
| Gold 8-Bit Headphones by Roblox |
55,000 R$ | 22,000 R$ | -33,000 R$ | -60.0% | 1 |
 Death Metal Headphones by Roblox |
94,995 R$ | 68,998 R$ | -25,997 R$ | -27.4% | 2 |
The 45,500 R$ drop on Stickmasterluke's Peanut Butter Sparkle Time is the largest Robux swing of the day in either direction, across both markets: one copy at 43,000 R$ against a RAP of 88,121 R$, a half-price sparkle time hat. Every row here traded once or twice. At the top end the six-figure classics moved the most Robux on tiny percentages, with Brighteyes' Bloxy Cola Hat up 30,000 R$ for 7.1% and Ice Valkyrie up 28,299 R$ for 7.6%.
UGC Limiteds
| Item | Prev sale avg | Sep 20 sale avg | Change | % | Sales |
|---|---|---|---|---|---|
| Red Star Void Crown by The.Archive |
2,970 R$ (Sep 18) | 15,374 R$ | +12,404 R$ | +417.6% | 4 |
| :3 tophat by Pancakity :P |
1,450 R$ (Sep 14) | 9,000 R$ | +7,550 R$ | +520.7% | 1 |
| Cosmic Legend Crown by VeL Outfit |
599 R$ (Sep 18) | 2,925 R$ | +2,326 R$ | +388.3% | 2 |
 Pink Sparkle Time Fedora by Velvet Hub |
2,489 R$ | 4,500 R$ | +2,011 R$ | +80.8% | 1 |
 Blue Immortal Blade by Olix's Corner Shop 2.0 |
19,999 R$ | 4,000 R$ | -15,999 R$ | -80.0% | 1 |
 Silver King of the Night by Epic’s UGC Plus |
15,000 R$ (Sep 12) | 3,000 R$ | -12,000 R$ | -80.0% | 1 |
 Liminal Tree by cloakedyoshi |
19,999 R$ (Sep 18) | 9,999 R$ | -10,000 R$ | -50.0% | 1 |
 Dollar Balloon by DevvGames |
18,000 R$ | 9,498 R$ | -8,502 R$ | -47.2% | 2 |
The biggest UGC Robux swing was the 15,999 R$ drop on Blue Immortal Blade, a 100-copy item that went from 19,999 R$ to a single 4,000 R$ print, against a RAP of 8,812 R$. The top four are gains built on a handful of prints, three past 300%, so read the Sales column first. Dollar Balloon is the steadiest row, two copies at 9,498 R$ against 18,000 R$ the day before.
Gems Back on the Market: which rare Roblox Limiteds traded again on Sep 20, 2026?
A gem is a scarce, high-value Limited that rarely comes up for sale.
Classic Limiteds
| Item | First sale since | Prior price | Sep 20 sale | Sales | RAP |
|---|---|---|---|---|---|
 WC Ultimates: Aquamarine Attitude by Roblox |
No prior sale on record | None | 950,000 R$ | 1 | 998,775 R$ |
 Red Crown of Ozymandias by Roblox |
Dec 15, 2025 | 600,000 R$ | 1,000,000 R$ | 1 | 294,666 R$ |
 Red, White, and Shaggy by Roblox |
Jul 10, 2026 | 115,000 R$ | 86,000 R$ | 1 | 83,467 R$ |
 American Commando by Roblox |
Jan 4, 2026 | 179,997 R$ | 50,000 R$ | 1 | 76,598 R$ |
 Musica Infernus Dominator by Roblox |
Jul 9, 2026 | 89,900 R$ | 60,000 R$ | 1 | 72,541 R$ |
 Lime Green Shaggy by Roblox |
Aug 3, 2026 | 138,000 R$ | 50,000 R$ | 1 | 71,426 R$ |
Red Crown of Ozymandias sold for a flat 1,000,000 R$, its first trade since Dec 15, 2025, just over nine months. The last owner paid 600,000 R$, on an item with 213 copies and a RAP of 294,666 R$; scarcity set that price. WC Ultimates: Aquamarine Attitude is rarer still, its 950,000 R$ print being the first sale of it on record, landing almost exactly on its 998,775 R$ RAP. The other four printed below their RAPs and far above the resale floor, so these are prices buyers chose: American Commando went for 50,000 R$ against a 76,598 R$ RAP. Demand for mid-tier classic hats has cooled.
UGC Limiteds
| Item | First sale since | Prior price | Sep 20 sale | Sales | RAP |
|---|---|---|---|---|---|
 Jeweled Fairy Wings in Pink by Beeism |
Aug 14, 2026 | 9,000 R$ | 7,000 R$ | 1 | 10,564 R$ |
One UGC gem surfaced. Jeweled Fairy Wings in Pink traded at 7,000 R$ after five quiet weeks, down from 9,000 R$ in August and under its 10,564 R$ RAP.
Most Traded: which Roblox Limiteds changed hands most on Sep 20, 2026?
Copies that changed hands between players on Sep 20, counting only items whose launch stock was already gone.
Classic Limiteds
| Item | Copies traded | Avg price | RAP | Lowest ask |
|---|---|---|---|---|
 Cake Topper by Roblox |
211 | 429 R$ | 459 R$ | 430 R$ |
 Verdant Crown by Roblox |
181 | 3,669 R$ | 3,715 R$ | 3,999 R$ |
 Solar System Aura by Roblox |
132 | 1,043 R$ | 1,051 R$ | 1,080 R$ |
 Quadri-Skull Aura by Roblox |
122 | 1,895 R$ | 2,132 R$ | 2,079 R$ |
 Party Fedora by Roblox |
103 | 547 R$ | 585 R$ | 550 R$ |
 Lord of the Buxeration by Roblox |
98 | 4,535 R$ | 4,645 R$ | 4,998 R$ |
 8-Bit Royal Crown by Roblox |
87 | 26,765 R$ | 26,858 R$ | 27,499 R$ |
 Goldrow by Roblox |
83 | 304 R$ | 337 R$ | 398 R$ |
Cake Topper took the classic crown with 211 copies at 429 R$, one Robux under the cheapest listing. Every row here traded close to its RAP, all inside 12%: lots of copies, tight prices, no drama. 8-Bit Royal Crown is the standout for size, 87 copies at an average of 26,765 R$, with Verdant Crown second on copies at 181.
UGC Limiteds
| Item | Copies traded | Avg price | RAP | Lowest ask |
|---|---|---|---|---|
 [⏳LIMITED] White Clockwork Dominus by Hastyy UGC |
28 | 95 R$ | 137 R$ | 198 R$ |
 Black Squid by Epic's UGC |
27 | 95 R$ | 96 R$ | 95 R$ |
 ⏳[LIMITED] Crazy Spin🤣 by Frame Perfect Emotes |
25 | 157 R$ | 226 R$ | 346 R$ |
 ⌛ Poisoned Horns by UGC۵ |
23 | 456 R$ | 460 R$ | 449 R$ |
 Dual Karambits - Purple Lightning by Supreme |
21 | 81 R$ | 81 R$ | 78 R$ |
 Dominus Latherous by Etherealez UGC |
20 | 348 R$ | 490 R$ | 749 R$ |
 White Star Crown by Noiré UGC |
19 | 260 R$ | 318 R$ | 439 R$ |
 Robux Dominus by The Coolest Moon Gang |
19 | 215 R$ | 288 R$ | 297 R$ |
The busiest UGC resale item moved 28 copies against the busiest classic's 211, because UGC volume spreads across thousands of items. [⏳LIMITED] White Clockwork Dominus led on 28 copies at 95 R$, the resale floor. Three dominus items made this board, all under their RAPs.
Creator Watch: which UGC creators moved the most Robux this week?
Robux that changed hands across each UGC creator's Limiteds over the seven days to Sep 20, against the seven days before.
Risers
| Creator | Items traded | Prior 7 days | Last 7 days | Change | % |
|---|---|---|---|---|---|
 duskiedark |
2 | 1,000 R$ | 600,095 R$ | +599,095 R$ | +59,909.5% |
| Zyvra UGC | 3 | 127,436 R$ | 350,336 R$ | +222,900 R$ | +174.9% |
 AMCAPS Official |
3 | 0 R$ | 179,604 R$ | +179,604 R$ | new |
 Universal Lime |
4 | 29,450 R$ | 193,106 R$ | +163,656 R$ | +555.7% |
 SizukeeShop |
20 | 56,371 R$ | 218,535 R$ | +162,164 R$ | +287.7% |
 Prime UGC! |
52 | 367,155 R$ | 522,441 R$ | +155,286 R$ | +42.3% |
 oqis |
9 | 27,360 R$ | 175,750 R$ | +148,390 R$ | +542.4% |
| Snowy'sz | 6 | 41,634 R$ | 176,452 R$ | +134,818 R$ | +323.8% |
 TTMK UGC |
1 | 35,055 R$ | 127,712 R$ | +92,657 R$ | +264.3% |
 Noiré UGC |
43 | 537,229 R$ | 629,500 R$ | +92,271 R$ | +17.2% |
Fallers
| Creator | Items traded | Prior 7 days | Last 7 days | Change | % |
|---|---|---|---|---|---|
 Velvet Hub |
14 | 534,998 R$ | 102,635 R$ | -432,363 R$ | -80.8% |
 R&S UGCS |
51 | 949,350 R$ | 632,428 R$ | -316,922 R$ | -33.4% |
 Hastyy UGC |
38 | 438,943 R$ | 288,074 R$ | -150,869 R$ | -34.4% |
 MFSC Ugc |
210 | 716,839 R$ | 569,621 R$ | -147,218 R$ | -20.5% |
 WOLF AT UGC |
11 | 294,092 R$ | 169,013 R$ | -125,079 R$ | -42.5% |
 1of1ugc |
10 | 410,007 R$ | 292,759 R$ | -117,248 R$ | -28.6% |
 Backgrounds Incorporated |
16 | 1,338,564 R$ | 1,224,156 R$ | -114,408 R$ | -8.5% |
 шум's |
62 | 179,999 R$ | 76,491 R$ | -103,508 R$ | -57.5% |
 Bestselling UGC |
149 | 192,815 R$ | 96,322 R$ | -96,493 R$ | -50.0% |
 .L3NXQ |
419 | 478,756 R$ | 388,045 R$ | -90,711 R$ | -18.9% |
duskiedark had the week's loudest jump, 600,095 R$ across just two items after a 1,000 R$ week before. The biggest week in plain Robux sits on the other table: Backgrounds Incorporated moved 1,224,156 R$ across 16 items, well clear of anyone else here, and still shows as a faller because the week before was bigger.
Velvet Hub took the hardest fall, down 432,363 R$ to 102,635 R$, though its Pink Sparkle Time Fedora was one of the day's better UGC Robux gainers. Hastyy UGC and Noiré UGC both landed items on the Most Traded board. Full standings on the creators leaderboard.
Market Cap and Market Share: how big is the Roblox Limiteds market?
Market cap is the total value of every Limited that carries a price. Turnover is how much of that value changed hands in a day, shown as a percentage.
Market cap and share
| Market | Market cap | Share of value | Change vs Sep 19 | Turnover |
|---|---|---|---|---|
| Classic Limiteds | 221.9B R$ | 92.6% | -0.2% | 0.001% |
| UGC Limiteds | 17.7B R$ | 7.4% | +0.3% | 0.028% |
| Total | 239.6B R$ | 100.0% | -0.2% | 0.013% |
Some 2,534 classic Limiteds and 113,751 UGC Limiteds carry a price. Those few thousand classics hold 92.6% of the market's value; the UGC side shares the other 7.4%.
The day's activity
| Market | Copies sold | Share of copies | Robux traded | Share of Robux | Avg per copy |
|---|---|---|---|---|---|
| Classic Limiteds | 5,627 | 15.0% | 26,367,318 R$ | 84.1% | 4,686 R$ |
| UGC Limiteds | 31,796 | 85.0% | 4,999,726 R$ | 15.9% | 157 R$ |
| Total | 37,423 | 100.0% | 31,367,044 R$ | 100.0% | 838 R$ |
Copies sold, share of copies and average per copy above count bought copies only.
The two markets swap places between the columns. UGC moved 31,796 copies, 85.0% of everything traded, for 4,999,726 R$, which is 15.9% of the Robux. Classics moved 5,627 copies for 26,367,318 R$. The average classic copy went for 4,686 R$ and the average UGC copy for 157 R$, close to thirty to one. UGC is where the trading happens and classics are where the value sits, and the market cap figures show the same split.
Free claims
| Market | Items given away | Claimed free | Free as a share of everything that moved |
|---|---|---|---|
| UGC Limiteds | 421 | 13,551 | 29.9% |
No classic Limited was given away on Sep 20. On top of the 31,796 UGC copies bought, another 13,551 UGC Limiteds were claimed free across 421 items, led by the Sour Patch Kids Besties Crown from Sour Patch Kids at 2,389 claims.
The first chart is where the money is and the second is where the trading is, and they point opposite ways.
Market Breadth: how many Roblox Limiteds rose and fell on Sep 20, 2026?
The two markets pulled apart on Sep 20. Classic Limiteds leaned down, 241 of 502 movers rising and 249 falling. UGC Limiteds leaned up, 139 of 358 rising and 110 falling. Together that is 380 up and 359 down, which on its own reads as a quiet day.
Breadth counts how many items moved in each direction, so it tells you whether a day was broad or driven by a few names. The three-week picture backs the split up: classic value is down 1.2% since Sep 1, UGC value up 1.1%. Cheap classics turn up on the deals page and the items leaderboard.
All the figures above come from RBX Invest's own record of Roblox Limited sales on Sep 20, 2026.
None of this is financial advice. Limited prices move fast and a single sale can look like a trend.
Next report tomorrow.
FAQ
How are these movers measured?
Each item's average sale price on Sep 20, 2026 is compared against its average sale price on its previous trading day.
What is RAP?
RAP stands for Recent Average Price. Roblox updates it after each sale using New RAP = Old RAP + (Sale Price - Old RAP) / 10, so it is an exponentially smoothed average across an item's whole sale history. That smoothing is why a single wild print barely moves it, and why an item can trade well above or below its RAP on any given day.
What was the biggest classic Roblox Limited gainer on Sep 20, 2026?
Snowman Face, up 1,163.6% to an average of 13,900 R$ from 1,100 R$ on its previous trading day, a gain of 12,800 R$. It sold two copies, so this was a thin move on an item with 1,889 copies. It was also the biggest gainer across both markets.
What was the biggest UGC Limited gainer on Sep 20, 2026?
:3 tophat, up 520.7% to 9,000 R$ from 1,450 R$ on Sep 14, a gain of 7,550 R$. It sold one copy and only 520 exist, so the percentage rests on a single buyer.
What is the total Roblox Limiteds market cap?
The whole Roblox Limiteds market was worth 239.6 billion R$ on Sep 20, 2026. Classic Limiteds account for 221.9 billion R$ of that, or 92.6%, and UGC Limiteds for 17.7 billion R$, or 7.4%.
Which market moved more copies and which moved more Robux on Sep 20, 2026?
UGC Limiteds moved more copies and classic Limiteds moved more Robux. UGC accounted for 31,796 of the day's 37,423 bought copies, which is 85.0%, but only 4,999,726 R$ of the 31,367,044 R$ traded, which is 15.9%. The average classic copy sold for 4,686 R$ against 157 R$ for the average UGC copy.
What was the most traded Roblox Limited on Sep 20, 2026?
Cake Topper, a classic Limited, with 211 copies changing hands at an average of 429 R$. On the UGC side the busiest item was White Clockwork Dominus at 28 copies, at its floor price of 95 R$.
What does it mean when the Sales column reads 1?
It means exactly one copy of that item sold that day, so the percentage move rests on a single trade. On thin items with only a few hundred copies, one buyer paying up or one seller dumping can produce a triple-digit percentage that says nothing about the wider market. Check the Sales number before reading anything into a big move.