Edge or Not

Altcoin season index

How many of the 50 most traded altcoins on Binance beat bitcoin over the last 90 days. 75 or more is called altcoin season, 25 or less bitcoin season. Updated daily.

21 Oct 2026 (daily close): index 70 - 35 of 50 altcoins beat bitcoin's +29.2% over 90 days. Neither. Last altcoin season day: 03 Oct 2025. Since 01 Nov 2019 the index spent 10% of days in altcoin season and 21% in bitcoin season.

Index since 01 Nov 2019 (0-100); shaded: altcoin season (75+) and bitcoin season (25 or less)
The index describes the last 90 days; it does not predict the next month. In our pre-registered test, the month after an altcoin season reading saw altcoins beat bitcoin in 3 of 8 cases. Over all 82 months, an equal-weight basket of the top 50 lagged bitcoin by 1.8% a month on average. Details below.

Today's top 50 vs bitcoin (90 days)

#Coin90-day returnBeat BTC?
1MUBARAK+450.3%yes
2QNT+221.3%yes
3PUMP+180.4%yes
4NEAR+179.3%yes
5ZEC+160.6%yes
6ZRO+146.3%yes
7ENA+140.8%yes
8ARB+118.2%yes
9STRK+99.5%yes
10UNI+98.4%yes
11VTHO+88.1%yes
12TIA+72.1%yes
13INJ+66.5%yes
14PEPE+65.9%yes
15AAVE+63.1%yes
16MSTRB+61.0%yes
17DASH+57.2%yes
18AVAX+54.1%yes
19WLD+53.2%yes
20LINK+47.6%yes
21FIL+44.7%yes
22CRCLB+42.0%yes
23SOL+41.0%yes
24TAO+41.0%yes
25DOT+40.4%yes
26SUI+38.3%yes
27BCH+35.2%yes
28SPCXB+34.9%yes
29ICP+34.0%yes
30ADA+33.6%yes
31PENGU+33.6%yes
32APT+32.8%yes
33ETH+31.7%yes
34BNB+31.5%yes
35LTC+31.1%yes
36FET+28.2%no
37SAND+25.6%no
38XRP+23.3%no
39DOGE+18.5%no
40HBAR+18.0%no
41TRUMP+15.6%no
42ASTER+15.5%no
43ONDO+14.7%no
44BABY+7.1%no
45XPL+1.0%no
46XLM+0.8%no
47TRX+0.6%no
48MOVR-4.3%no
49GRAM-7.1%no
50SNDKB-16.4%no

Does altcoin season predict altcoin gains? No edge

We wrote the rules down before loading the data. At every month-end from November 2019 to August 2026 (82 months) we took the same top 50 altcoins in equal weights and compared their next-month return with bitcoin's, after 0.2% costs. Delisted coins count at their last price.

After a month-end reading ofMonthsAltcoins beat BTC next monthAverage vs BTCp (chance)
Altcoin season (75+)83 of 8+2.3%0.24
Bitcoin season (25 or less)218 of 21-1.8%0.52
Any month8238%-1.8%

The positive average after altcoin season comes from two months - July 2020 (+42%) and March 2021 (+32%); the three most recent readings (August 2022, December 2023, January 2024) were all followed by altcoins losing to bitcoin. The steadier fact in this sample is different: the top 50 altcoins as a group lagged bitcoin in 62% of months. Rules and limits: test #5 in research; the index has existed in this form only since late 2019, when Binance first listed enough altcoins against USDT.

How it is calculated

  1. Every day, take all USDT pairs on Binance spot, including delisted ones for past dates. Exclude bitcoin, stablecoins and fiat, wrapped coins and gold tokens, and leveraged tokens.
  2. Keep coins with a full 90 days of history; pick the 50 with the highest USDT volume over the last 30 days.
  3. Index = share of those 50 whose 90-day return beats BTCUSDT's 90-day return, times 100.

Popular versions rank the top 50 by market cap instead of trading volume, so the numbers differ somewhat. Ours is fully reproducible from Binance's public data.

FAQ

What is altcoin season?

A period when most large altcoins rise faster than bitcoin. By the usual definition, when at least 75% of the top 50 altcoins beat bitcoin over 90 days.

Does the index predict where altcoins go next?

Not in our test. In 82 months (2019-2026) the index reached altcoin season in 8; in the month after, altcoins beat bitcoin only 3 times, and the result was not distinguishable from chance (p = 0.24). Bitcoin season did not predict either (p = 0.52).