Coinglass data showed Ether (ETH) options trading reached about $1.67 billion on Oct. 15, with Bybit’s Oct. 16 $2,850 call the busiest individual contract and total open interest at $5.81 billion.
Coinglass’s Oct. 15 snapshot put open interest at $5.81 billion, the value of options contracts still outstanding. The firm said the figure was 0.1% higher than a day earlier, although its rounded display showed $5.81 billion for both dates. Trading volume tracks activity over a period, so it measures a different part of the market.
In Coinglass’s snapshot, puts represented 36.96% of open interest and 37.6% of volume, while calls made up 63.04% and 62.4%, respectively. The call share was slightly lower in daily trading than among outstanding positions, while the put share was slightly higher.
By volume, Bybit’s Oct. 16 $2,850 call ranked first, ahead of the exchange’s $3,300 and $2,775 calls with that expiry. Open interest favored a different contract: Deribit’s Dec. 25 $3,200 call led, followed by its $2,200 and $2,300 calls expiring on the same date.
Options are derivatives tied to an underlying asset. A call lets its holder buy the underlying at a preset price; a put gives its holder the right to sell it at that price. Options can be used to take leveraged positions or hedge existing exposure.
For the leading Bybit contract, $2,850 was the strike price and Oct. 16 was the expiry date. Open interest counts contracts that remain outstanding; volume reflects options traded during the measured period.



