Read the Tape - Daily blind S&P 500 chart prediction game
Show HN: Read the Tape – Wordle for daytrading, five blind S&P 500 charts a day

Read the Tape transforms daytrading into a daily challenge, offering five blind S&P 500 charts for users to predict market direction. Players wager virtual funds based on their conviction, competing against the humorous Monkey Index benchmark. This gamified experience allows traders to test their technical analysis skills without financial risk, featuring streak tracking, friend challenges, and shareable results. It turns complex market data into an engaging, accessible daily habit for both seasoned traders and curious enthusiasts.
"Blind chart. Make the call. Five daily charts. Call up or down. Conviction sets your paper wager."
HN discussion
- Players exhibit significant overconfidence in the game, stating 74% average confidence while achieving only 54% accuracy, with performance remaining flat across all confidence brackets.
- A simple 'Up only' strategy quietly outperforms the random 'Monkey Index' baseline, yet players still choose to call 'Down' 43% of the time.
- Critics argue that technical analysis on sparse, context-free charts is effectively 'money-astrology,' as the map is not the territory and lacks necessary fundamental data for accurate sizing.
- Skeptics contend that if straightforward algorithmic strategies could consistently beat the market using this data, institutional investors with billions in capital would have already deployed bots to capture those returns.
- Users repeatedly flag that the game's core mechanics and the definition of 'Up' versus 'Down' relative to the Monkey Index are unclear and require more prominent explanation.