What caused Solana (SOL) to drop ~3.7% in the last

Solana (SOL) is trading at $116.30, down 3.37% in the last 24 hours (matching the ~3.7% move you referenced), with a market cap of $68.53B and 24h volume of $3.13B [Source: https://www.coingecko.com/en/coins/solana]. The most concrete, datable driver for this specific pullback is persistent U.S. spot Solana ETF outflows, which have now run for multiple consecutive sessions.

The ETF outflow story (the primary datable cause)

• Oct 5: U.S. SOL spot ETFs recorded $9.2451M in total daily net outflows (per SoSoValue data, reported by Odaily) [Source: https://www.odaily.news/en/newsflash/522631].
• Oct 6: U.S. spot Solana ETFs recorded $3.7M in net outflows — a second consecutive day of outflows, with Grayscale Solana Trust accounting for the withdrawals [Source: https://www.tokenpost.com/news/investing/27153].
• This follows a broader cooling: Solana ETFs attracted just $2.4M for the week ending Oct 2, down sharply from a $188M week, with two sessions seeing outflows [Source: https://247wallst.com/investing/cryptocurrency/2026/10/03/solana-etfs-report-2-4-million-in-inflows-is-the-winning-streak-ending/].

So the 24h drop is best read as institutional flow-driven weakness: consecutive ETF outflows (Oct 5–6) coincided with the price slide into the $116–117 range. This is a correlation with a clear mechanism (institutional selling pressure), though the exact size of the price effect is not quantified in the sources.

Important context / counterpoint (why this is a pullback, not a breakdown)

• SOL had a strong run into this: it rose ~48% in Q3 2026, and Solana ETFs have pulled in $842M so far in 2026, including $480M in Q3 and $272M in September alone [Source: https://www.aol.ca/articles/solana-etfs-report-2-4-000631000.html]. The current outflow streak follows that inflow surge, so it reads as profit-taking/consolidation rather than a structural reversal.
• On the fundamentals side, the network continues building: Solana recently launched a DvP (delivery-versus-payment) settlement infrastructure for institutional finance [Source: https://www.coinbase.com/price/solana]. These are constructive but do not offset the near-term flow pressure.
• Broader market context: SOL's 7-day change is only -1.45%, and its 1-hour change is +0.05% — meaning the 24h drop is a short-term move within a relatively flat week, reinforcing the "technical/institutional pullback" interpretation [Source: https://www.coingecko.com/en/coins/solana].

Caveats on evidence

The exact 3.7% figure is not directly attributed to a single news event in the sources; the ETF outflow data (Oct 5–6) is the strongest datable catalyst that lines up with the timing. I did not find a single "smoking gun" headline (e.g., a hack, regulatory action, or network outage) tied to this specific 24h window. The social feed for SOL is dominated by low-quality memecoin/airdrop promotion and a few bearish retail takes, which is sentiment noise rather than a datable cause.

Bottom line: The 3.7% drop is most plausibly driven by consecutive U.S. spot Solana ETF outflows (Oct 5–6) following a period of heavy inflows, i.e., institutional profit-taking. It is a pullback within a strong quarter, not a fundamental breakdown — but the flow data is the only concrete, time-aligned catalyst available.