On November 8, 2021, the price of bitcoin reached an all-time high of $68,564 per unit at 10:57 p.m. (ET) on Monday evening. Meanwhile, Plan B, the creator of the bitcoin price model called stock-to-flow (S2F), has correctly predicted the last three months of bitcoin prices and recently said that based on the floor model the price will reach $100K this year.
‘Bitcoin Looking Strong’ — Plan B’s Poll Results Show 40% of Voters Believe $100K Will Happen This Year
Four months ago in June, Plan B tweeted that his “worst-case scenario for 2021” bitcoin (BTC) prices “on-chain based” would be “Aug>47K, Sep>43K, Oct>63K, Nov>98K, Dec>135K.” During the first week of August, Plan B reconfirmed his confidence in the price forecast and said “$64K was not the top.”
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After correctly predicting the bitcoin prices for the months of August, September, and October, Plan B has been discussing BTC’s current price run-up during the first week of November. On November 3, Plan B tweeted that bitcoin’s “Relative Strength Index [is] 72” and further noted that “bitcoin [is] looking strong.”

Two days later, Plan B published a poll asking his 1.4 million Twitter followers if they thought bitcoin would reach “$500K, $288K (S2FX model), $100K (S2F model), or will BTC stay below $100K… by Christmas 2021?”
The poll got 242,008 votes before closing and 39.8% said it would reach $100K per unit. 31.4% of Plan B’s voters who participated in the poll believe the price could hit $288K, while 23.8% have the opinion that BTC will stay below $100K. 5% of the 242,008 votes believe there is a chance BTC will hit $500K per unit.
S2F Model Predicts $100K Average, S2FX Model Predicts $288K Average
The same day the pseudo-anonymous analyst further asked his followers “Are you ready for +$10K daily candles?” Two days later, Plan B said “bitcoin long-term momentum is rising fast.”
Some people think Nov close $98K is too big a jump. It is +60% from current level. Yes that is a big jump. But #bitcoin did this many times before:
May 2019 +62%
Aug 2017 +66%
May 2017 +66%
Nov 2013 +451%
Oct 2013 +61%
Mar 2013 +181%
Feb 2013 +63% etc pic.twitter.com/1VAmwxAYox— PlanB (@100trillionUSD) November 5, 2021
About six hours before bitcoin (BTC) tapped an all-time high on Monday evening, Plan B once again spoke about the six-digit price prediction.
“As you know S2F model predicts $100K average for this halving period (and based on floor model we reach $100K this yr),” Plan B said. “But S2FX model predicts $288K average this cycle (we need some real fireworks in 2022 for that). Let’s see where this 2nd leg of the bull market will take us,” the analyst added.