Altcoin Season Index Holds Above 60 for Five Days: BTCDOM Up 0.18%, ALL Down 3.24%

The altcoin season index held above 60 for five straight days, with 74 posts and 1,388 views around the topic. In the same window, Binance BTCDOMUSDT moved from 5092.2 USDT to 5101.2 USDT, a weekly change of 0.18%, while ALLUSDT moved from 0.6984 USDT to 0.6758 USDT, a weekly decline of 3.24%. The index measures altcoins against Bitcoin, not altcoins on their own, and these two pairs answer differently: one barely moved, the other gave back ground. All figures below come from the Binance official interface, copied as-is.

What the seven days actually did

Date	BTCDOMUSDT open	BTCDOMUSDT close	BTCDOMUSDT change	ALLUSDT open	ALLUSDT close	ALLUSDT change
2026-09-24	5187.5 USDT	5122.2 USDT	-1.26%	0.6446 USDT	0.6675 USDT	3.55%
2026-09-25	5122.2 USDT	5046.9 USDT	-1.47%	0.6671 USDT	0.6903 USDT	3.48%
2026-09-26	5046.8 USDT	5081.8 USDT	0.69%	0.6902 USDT	0.6918 USDT	0.23%
2026-09-27	5081.7 USDT	5092.1 USDT	0.2%	0.6915 USDT	0.6984 USDT	1%
2026-09-28	5092.2 USDT	5094 USDT	0.04%	0.6984 USDT	0.6655 USDT	-4.71%
2026-09-29	5093.9 USDT	5122.2 USDT	0.56%	0.6655 USDT	0.6681 USDT	0.39%
2026-09-30	5122.3 USDT	5104.3 USDT	-0.35%	0.6682 USDT	0.6745 USDT	0.94%
2026-10-01	5104.2 USDT	5101.2 USDT	-0.06%	0.6746 USDT	0.6758 USDT	0.18%

Three days matter most. On 2026-09-25 BTCDOMUSDT closed at 5046.9 USDT, down 1.47%, its heaviest drop of the week. On 2026-09-28 ALLUSDT fell from 0.6984 USDT to 0.6655 USDT, down 4.71%, erasing most of the earlier gains and setting the weekly result. On 2026-10-01 both closed flat, BTCDOMUSDT down 0.06% and ALLUSDT up 0.18%.

Where this week sits in the weekly sample

BTCDOMUSDT has 200 weekly samples, with 120 weeks stronger than this one, so a 0.18% gain lands in the weaker half. For comparison, the week of 2022-12-12 ran from 1267.7 USDT to 1359.9 USDT, up 7.27%; 2023-03-13 ran from 1440.2 USDT to 1647.9 USDT, up 14.42%; 2025-04-07 ran from 4641.8 USDT to 5191.1 USDT, up 11.83%; 2026-08-24 ran from 5241.8 USDT to 5404 USDT, up 3.09%. Each was higher than this week's 0.18%.

ALLUSDT has 61 weekly samples, with 35 weeks stronger than this one. Its week fell 3.24%, yet stronger weeks exist: 2026-05-04 ran from 0.5671 USDT to 0.6429 USDT, up 13.37%; 2026-08-17 ran from 0.4827 USDT to 0.5517 USDT, up 14.29%; 2026-09-21 ran from 0.6231 USDT to 0.6984 USDT, up 12.08%. All three were higher.

What the trending posts say

Trending posts on the square argue that the altcoin season index holding above 60 for five days means altcoin strength against Bitcoin has not broken (relayed, not this site's view). Some read BTCDOMUSDT's flat tape as "not yet rotated" and expect the catch-up to start with higher-volatility names.

That has a factual anchor: the index did hold above 60 for five days. But the index tracks relative strength, not absolute price. ALLUSDT falling 3.24% this week is the direct counterexample. Treat the posts as sentiment, not as confirmed fact.

Three plain truths

First, index stability and price gains are separate things. BTCDOMUSDT rose 0.18% while ALLUSDT fell 3.24% inside the same window. Second, high leverage turns a flat tape into losses; BTCDOMUSDT's largest single-day move was a 1.47% decline, and ALLUSDT's 4.71% drop is sharper still. Third, funding is a holding cost, not income, and "best week" labels only exist after looking back at the sample.

Fee tier

Binance contract default maker fee is 0.02% and default taker fee is 0.05%. After a 20% rebate, the effective maker fee is 0.016% and the effective taker fee is 0.04%.

Source: https://fapi.binance.com/fapi/v1/exchangeInfo

Data as of 2026-10-01; source: Binance official interface. Not investment advice.

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