Pump.fun Token Surges on $40.8M Open Interest Spike and Whale Accumulation
The Pump.fun token ($PUMP) posted a double-digit percentage gain over the past 24 hours, driven primarily by a surge in perpetual futures market activity. Data from CoinGlass shows Open Interest climbed by approximately $40.83 million in fresh capital, pushing the total to $355.08 million at press time.
Open Interest and Funding Rate Signal Long-Side Dominance
Open Interest measures the total capital committed to an asset’s perpetual market, with its movement indicating whether traders are adding long or short positions. The current data points decisively toward long positioning. The Funding Rate jumped from roughly 0.0007% in the early hours of September 12 to around 0.0072% — a nearly tenfold increase.
This significant surge suggests the inflow of fresh capital over the past day came predominantly from traders positioning for a near-term rally.
Whale Activity Drives Rally
Large investors, categorized as whales due to their capital capacity to influence price, have entered the market aggressively. The Whale Retail Delta — a metric tracking whale versus retail participation — registered a 0.274 reading, indicating a significantly high positive level.
When this metric surges and remains positive, it implies whales are the key drivers of the rally and are playing a decisive role through sustained buying activity.
Market Sentiment Turns Bullish
Investor sentiment has shifted noticeably toward optimism. CoinMarketCap data places the sentiment index at 3.53 on a scale of -10 to 10, with the trend line tilting upward. The combination of whale accumulation and improving sentiment strengthens the short- to near-term price outlook for $PUMP.
Spot Investors Accumulate
Spot market participants are also buying aggressively. Over the past 12 hours, cumulative net buying exceeded selling, with CoinGlass data showing Netflow reaching -$1.13 million. Negative Netflow indicates capital outflows from exchanges into private wallets — a behavior typically associated with bullish expectations, as investors remove tokens from selling pressure.
Continued spot accumulation could add further momentum to the asset’s ongoing surge.

