Ethereum Binance Open Interest Climbs in ETH Terms as Dollar Value Slips 6.6%

Ethereum open interest in Binance’s ETHUSDT futures contract rose by 2.27% in ETH terms over the 48-hour period leading to Thursday, Oct. 8, despite a 6.58% decline in its USDT-denominated value.

Open interest represents the total number of outstanding futures contracts. For traders evaluating remaining exposure during a price decline, analyzing coin quantity helps separate changes in actual contract exposure from changes in asset valuation.

In contrast, Bitcoin’s futures book showed a different dynamic. Over the same period, Binance’s BTCUSDT open interest decreased by 1.45% in BTC terms, while its USDT value fell by 5.97%. According to the accounting methodology detailed below, the majority of this value decline resulted from repricing.

Using Oct. 6 as the baseline captures both earlier market growth and Thursday’s contraction. Both open interest quantities decreased on Oct. 8; from midnight to 21:00 UTC, ETH-denominated exposure fell by 2.85%, and BTC-denominated exposure declined by 3.03%.

Ethereum Open Interest: More ETH, Less USDT Value

Hourly records for the ETHUSDT contract show open interest rising from 2,279,556 ETH to 2,331,355 ETH over the fixed 69-hour window. In contrast, its USDT-denominated value fell from approximately 6.175 billion to 5.768 billion USDT.

For the BTCUSDT contract, records show quantity declining from 94,297 BTC to 92,927 BTC, while its value fell from approximately 8.083 billion to 7.6 billion USDT.

The comparison runs from Oct. 6, 2026, at 00:00 UTC to Oct. 8 at 21:00 UTC. Each series contains 70 matched hourly observations, with timestamps marking period ends under Binance’s open interest statistics definitions. Percentage changes are calculated by dividing the ending observation by the starting observation, subtracting one, and multiplying by 100.

The units of measurement are critical. Binance describes USD&S-M trade size in base-asset quantity, and its perpetual products as linear contracts quoted and settled in stablecoins. For ETHUSDT and BTCUSDT, quantity is expressed in ETH and BTC, while the corresponding valuation is in USDT. Because USDT maintains a dollar peg, it serves as a reliable proxy for dollar value.

Dividing each valuation by its coin quantity yields an implied valuation per coin. This ratio fell from 2,708 to 2,474 USDT per ETH and from 85,718 to 81,784 USDT per BTC. These figures represent valuations implied by the open interest records, rather than independently observed spot prices.

Separating Quantity from Repricing

To isolate these factors, one can first adjust the outstanding quantity at the initial implied valuation, and then reprice the ending quantity, effectively separating the two contributions to the overall value change.

For ETH, the increase in quantity would have contributed approximately 140.3 million USDT at the initial implied valuation. Repricing the ending quantity then subtracts about 546.5 million USDT, resulting in a net decline of approximately 406.2 million USDT.

For BTC, the reduction in quantity subtracts approximately 117.4 million USDT at the initial implied valuation, while repricing subtracts an additional 365.6 million USDT, leading to the overall decline of about 483 million USDT. Under this accounting framework, lower valuation explains the majority of Bitcoin’s decrease.

This ordering assigns the interaction between quantity and valuation to the repricing component. Reversing the sequence alters the individual allocations but preserves the net change; these contributions represent an accounting convention rather than uniquely identified economic causes.

Both Quantities Contracted on Oct. 8

ETHUSDT entered Oct. 8 with 2,399,634 ETH outstanding, reaching 2,331,355 ETH by the end of the day. This midnight-to-21:00 interval contracted the book by 2.85%, though the final quantity remained above the Oct. 6 baseline.

BTCUSDT started Thursday at 95,833 BTC and closed at 92,927 BTC by 21:00 UTC. This 3.03% contraction exceeded its 1.45% cumulative decline because earlier gains partially offset Thursday’s reduction.

Open interest is a stock measure of outstanding exposure at a specific point in time. In contrast, liquidations represent flow activity occurring over a period, and new position openings can offset contract closures.

Funding and Weekly Data Answer Different Questions

The ETH funding history recorded Oct. 8 settlements of −0.003319% at 00:00 UTC, +0.000509% at 08:00, and +0.002629% at 16:00. Over the same timestamps, the BTC funding history recorded rates of −0.000992%, −0.001185%, and +0.003445%.

These are settlement rates spaced eight hours apart. The raw API decimals are converted to percentages by multiplying by 100; thus, ETH’s latest observed rate of 0.00002629 becomes 0.002629%.

Under Binance’s funding payment rules, a positive rate indicates that long positions pay shorts. Both contracts exhibited positive funding at the latest observed settlement on Oct. 8 at 16:00 UTC.

Broader market context requires its own timeline. In its Oct. 8 State of the Market report, trading technology provider Talos defined its primary weekly window as Oct. 1–7. The report noted aggregate open interest rising 5.7% to $46.3 billion for BTC and 0.6% to $27.4 billion for ETH, alongside seven-day liquidations of $366.5 million and $323.3 million, respectively.

These weekly aggregates cover a broader market scope than the two specific Binance contracts and end earlier than the fixed Oct. 6–8 comparison period. Talos separately noted declining Binance BTC-USDT perpetual open interest leading into Thursday’s price move.

What the Remaining Exposure Means

Binance still represented 2.331 million ETH and 92,927.720 BTC in these outstanding contracts.

Assessing the vulnerability of this outstanding exposure would require separate account, leverage, and positioning data.

The next key distinction to monitor is whether coin quantity continues to decline or if a lower valuation again drives the majority of the headline value change.

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