Crypto market sentiment has flipped bullish over the past three days. Roughly $313 billion has been added to the market, with total capitalization rising from $2.19 trillion to $2.5 trillion. Wednesday, August 19, saw the biggest short liquidation in crypto history, with more than $2.7 billion worth of positions wiped out, according to CoinGlass, a crypto derivatives data tracker. Short liquidations occur when rising prices erase the margin behind bets against the market, forcing exchanges to close those positions automatically.

As prices turned higher on Wednesday, Kalshi set two new records on the same day. Data from Artemis, a crypto analytics platform, shows the platform's daily crypto spot volume reached a new high of $268.89 million, while daily perp open interest hit $18.69 million. Both prints landed just as the market rallied, but they track different behaviour and need to be read separately.

What Kalshi's Spot Volume Actually Counts

Artemis labels the crypto-based event contracts as spot volume on its page. Kalshi does not run a spot order book; these instruments are essentially yes-or-no binaries based on whether a specific asset closes above a given level by a set date. A trader's downside is limited to the amount put down for a contract, and there is no liquidation. Because this design draws flows in regardless of which direction the market is moving, volume records on these books measure attention rather than conviction.

In early June, Kalshi printed what was then a new crypto volume record, and it took place during the heaviest liquidation day since February (as previously covered). The current $268.89 million figure shows that crypto event-based contracts are where traders go when the market moves, and it says nothing about directionality.

Open Interest Is Where the Direction Shows Up

Crypto perpetual futures launched on Kalshi on June 3, and volume cleared $1 billion within the first week. Unlike the binary event contracts, perps are leveraged derivatives with no expiry date, kept tethered to the underlying asset through periodic funding payments between long and short positions; they are the standard instrument for crypto leverage. Open interest is a valuable metric because it shows what stayed on the table after the close. A record OI reading on the day a rally began means traders were carrying leveraged exposure overnight instead of scalping in and out during the session.

Positions held through the close are a bet on continuation. The Artemis chart shows the metric climbing from roughly $2 million on June 4 to $18.69 million on August 19, with only a flat stretch through late June breaking the trend.

Small Absolute Numbers, Steep Trajectory

Nobody is claiming $18.69 million in open interest competes with Binance or Hyperliquid, where perp OI runs into the billions; on size alone, Kalshi barely registers in the perp landscape. What makes it worth tracking is the venue type. Kalshi holds a CFTC license and operates onshore, meaning leveraged crypto demand that historically routed to offshore exchanges is now clearing through a US-regulated market. Offshore venues have long dominated crypto derivatives, and several have faced US enforcement for serving American customers without registration, including Binance, which paid $4.3 billion in 2023 to settle US charges that included operating an unregistered derivatives exchange. Eleven weeks of data is a short sample, but the direction of the line has been consistent since launch.

Prediction market platforms have spent the past year moving from election contracts into financial markets. With perps, Kalshi is now in direct competition with crypto-native venues rather than adjacent to them.

The Data Already Lags the Tape

One caveat on timing: these are the most recent figures Artemis has published, and crypto has continued to climb since August 19. Both records may have been taken out already. The next Artemis update will show whether the August 19 highs held for more than a day, and whether the open interest build survived the move higher or got unwound into strength.