Butterfly Knife Index
An index for Butterfly Knife skins.
Butterfly Knife index overview
The Butterfly Knife Index measures the combined price movement of Butterfly Knife skins. Butterfly Knife skins are up 34% since January 2024, with the index at 1,338.6 against its starting level of 1000. The index is down 0.3% over 7 days and 5.8% over 30 days as of . Its most valuable members are the ★ Butterfly Knife | Fade at $30.7 million, the ★ Butterfly Knife | Autotronic at $23.2 million and the ★ Butterfly Knife | Lore at $18.5 million.
- Index level
- 1,338.6Base 1000 in January 2024
- 7-day change
- -0.3%
- 30-day change
- -5.8%
- Market value
- $349.3M
- 7-day volume
- $5.9M
- Items
- 79Wears counted separately
Performance
| Period | Change |
|---|---|
| 7 days | -0.3% |
| 30 days | -5.8% |
Most valuable members
Among its most valuable members, the ★ Butterfly Knife | Crimson Web moved the most over 7 days, up 4.9%.
| Item | Market value | Price | 7-day change |
|---|---|---|---|
| ★ Butterfly Knife | Fade | $30.7M | $1,870 | +1.6% |
| ★ Butterfly Knife | Autotronic | $23.2M | $708 | +2.1% |
| ★ Butterfly Knife | Lore | $18.5M | $536 | -2.7% |
| ★ Butterfly Knife | Black Laminate | $16.8M | $542 | +2.3% |
| ★ Butterfly Knife | Marble Fade | $16.8M | $1,145 | -0.2% |
| ★ Butterfly Knife | Slaughter | $16.7M | $1,027 | -1.5% |
| ★ Butterfly Knife | Freehand | $16.1M | $497 | +3.5% |
| ★ Butterfly Knife | Bright Water | $14.5M | $440 | -1.9% |
| ★ Butterfly Knife | Tiger Tooth | $13.5M | $939 | -0.6% |
| ★ Butterfly Knife | $12.9M | $1,050 | +0.9% |
How the index works
The index weights each item by price and caps any one item at between 2.5% and 7.5% of the basket, depending on how many items it holds, so no single item can dominate it. The basket is rebuilt every Monday, leaving out items too illiquid to price, and the level follows the price changes of the items in it on BUFF, Youpin, CSFloat and Steam. Levels are points, not dollars. The latest daily reading priced 83 of the 83 items in the basket. The item prices the Butterfly Knife Index is built from are available from the CS2 price history API.
What does the Butterfly Knife Index measure?
The combined price movement of Butterfly Knife skins, with each item weighted by its price. Its basket holds 79 items, counting each wear and StatTrak version separately.
What does an index level of 1,338.6 mean?
It means the prices of Butterfly Knife skins are at 134% of where they stood when the index started at 1000 in January 2024.
How has the Butterfly Knife Index performed?
Up 34% since it started, and down 11% since , when it stood at 1,510.6.
Which items carry the most weight in the Butterfly Knife Index?
The most expensive ones: the index weights each item by its price, up to a cap per item. Among its most valuable members, the ★ Butterfly Knife | Doppler is the priciest at $10,544, followed by the ★ Butterfly Knife | Doppler at $9,560.