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Informational index only. Not investment advice. Not an investable product.

Sei (SEI)

$0.0479−0.65%24h

Sei (SEI) is a Layer 1 crypto asset, ranked #97 by market capitalization on CoinMarketCap with a market cap of $367M. About $30.4M traded in the 24 hours to Nov 1, 2026 across 380 market pairs.

It is a constituent of the C100 index with a target weight of 0.11% (#76 by weight), and is also held in C100-EW, C100-exBTC. It first entered the C100 on Jan 1, 2024.

Since Aug 16, 2023, its price has changed −73%.

SEI price

24h
−0.65%
7d
−11.68%
30d
−32.02%
YTD
−56.81%
1Y
−74.89%
Since Aug 2023
−73.04%

Latest price as of Nov 1, 2026, 15:22 UTC.

Market data

Market cap
$367M
As of Nov 1, 2026
24h volume
$30.4M
CoinMarketCap rank
#97
Market pairs
380
High since 2020
$1.05
Mar 16, 2024
From that high
−95.4%
Volatility, 1 year (annualized)
78%
Max drawdown since 2020
−96%
Correlation with BTC, 1 year
0.65
Price data since
Aug 16, 2023
Listed on CoinMarketCap
Aug 14, 2023

Daily values at 00:00 UTC from CoinMarketCap. Statistics use daily closes; drawdown since January 2020 or the first available price.

Index membership

C100
0.11%
C25
Not held
C100-EW
1.00%
C100-exBTC
0.13%

Target weight at the latest index event; live weights drift with prices.

Sei has spent 1,035 days in the C100, and is currently #76 of 100 by weight.

  • Jan 1, 2024 – present

Weight history

Weight at each index event (table)
DateC100
Oct 5, 20260.11%
Sep 7, 20260.09%
Aug 3, 20260.11%
Jul 6, 20260.12%
Jun 1, 20260.14%
May 4, 20260.13%
Apr 6, 20260.13%
Mar 2, 20260.16%
Feb 2, 20260.17%
Jan 5, 20260.18%
Dec 1, 20250.20%
Nov 3, 20250.22%
Oct 6, 20250.25%
Sep 1, 20250.26%
Aug 4, 20250.26%
Jul 7, 20250.28%
Jun 2, 20250.19%
May 5, 20250.20%
Apr 7, 20250.17%
Mar 3, 20250.22%
Feb 3, 20250.20%
Jan 13, 20250.22%
Jan 6, 20250.24%
Dec 2, 20240.36%
Nov 4, 20240.28%
Oct 7, 20240.32%
Sep 4, 20240.23%
Sep 2, 20240.23%
Aug 5, 20240.21%
Jul 1, 20240.20%
Jun 3, 20240.23%
May 6, 20240.25%
Apr 1, 20240.28%
Mar 4, 20240.32%
Feb 5, 20240.36%
Jan 1, 20240.30%

Eligibility check

It ranks #76 among eligible assets. As a constituent it stays while it ranks in the top 120. The next reconstitution is on Jan 4, 2027.

Sei against each C100 eligibility rule on Nov 1, 2026
RuleSEIResult
Not an excluded token typeEligible typePass
Top 150 after exclusions#83Pass
At least 90 days of history1,174 daysPass
30-day median volume of at least $5.00M$44.9MPass
At least 10 market pairs380Pass

Indicative, on data for Nov 1, 2026. The official check runs at each reconstitution; see the methodology.

Additions and removals

Index events that added or removed Sei
DateIndexChangeEvent
Jan 1, 2024C100-exBTCAddedReconstitution
Jan 1, 2024C100-EWAddedReconstitution
Jan 1, 2024C100AddedReconstitution

Full details on the rebalances page.

Related C100 constituents

Sei and the C100: questions

Is Sei in the C100 crypto index?

Yes. Sei is a C100 constituent with a target weight of 0.11% at the latest index event.

When was Sei added to the C100?

Sei first entered the C100 on Jan 1, 2024.

Could Sei be added or removed at the next reconstitution?

The next reconstitution is on Jan 4, 2027. It ranks #76 among eligible assets. As a constituent it stays while it ranks in the top 120.

Why is Sei's weight 0.11%?

C100 weights follow market capitalization, with every asset other than Bitcoin and Ethereum capped at 10%, and assets above 4.5% limited to 48% in total. Weights reset on the first Monday of each month. Sei's highest C100 weight was 0.36%, on Dec 2, 2024.

What is Sei's highest price since 2020?

Sei's highest daily close since January 2020 was $1.05, on Mar 16, 2024. The latest price is −95.4% from that level.

How many times has Sei been added to or removed from C100 indexes?

3 additions and 0 removals across the C100 family since 2020, most recently added to C100-exBTC on Jan 1, 2024.