Sendtember is Adam Back’s one-word market prompt encouraging Bitcoin buying this September; historically Bitcoin’s median September return is -7.87% but a positive September often precedes a strong Q4, making Sendtember a notable market sentiment signal for traders evaluating seasonal BTC risk and opportunity.
Sendtember signals a challenge to Bitcoin’s seasonal weakness.
September historically posts negative median returns for BTC, while October–November often see large gains.
Median September return: -7.87%; average September: -0.64%; August recent drop: -6.43%.
Sendtember — Bitcoin September signal: Adam Back’s one-word post challenges historical September weakness. Read concise analysis, median returns, and trading cues for BTC this month.
What is Sendtember?
Sendtember is a single-word post by Blockstream CEO Adam Back, paired with a green square emoji, intended as a market prompt to send Bitcoin in September. The tag directly challenges Bitcoin’s historical seasonal weakness and has sparked debate among traders and analysts about whether September can flip to bullish momentum.
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Bitcoin’s September performance is notably weak: the median return sits at -7.87% and the long-term average is about -0.64%. August’s recent slide of -6.43% worsened sentiment ahead of September. By contrast, October historically delivers over 15% on average and November well north of 40%, according to aggregated historical price data and on-chain analysis.
Adam Back is a prominent figure referenced in the Bitcoin whitepaper and CEO of Blockstream; his social posts influence sentiment among Bitcoin-focused investors. The Sendtember tag functions as a market narrative — memes and short-form prompts can shift flows, especially when amplified by high-profile figures and social media.
Interpret Sendtember as a sentiment cue, not a deterministic signal. Use position sizing and risk management because September’s median return is negative. Monitor on-chain metrics, order book liquidity, and macro events. Historical seasonality suggests a positive September improves the odds for a strong Q4, but past performance is not a guarantee.
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Source: https://en.coinotag.com/adam-backs-sendtember-post-prompts-debate-whether-bitcoin-can-reverse-september-downtrend/