Jupiter Neurosciences, Inc. stock plunges 44% after spiking to $11.14

Jupiter Neurosciences, Inc. stock (NASDAQ: JUNS) just posted one of its most violent sessions on record. On August 21, 2026, shares opened at $8.20, spiked to $11.14, then collapsed to close at $6.20 — well below the open and far from the day’s peak.

Key takeaways

• JUNS opened at $8.20 on August 21, 2026, spiked to an intraday high of $11.14, then reversed sharply to close at $6.20.
• The daily EMA structure remains bullish with price above the EMA20 (3.56), EMA50 (1.99), and EMA200 (1.08), but RSI14 at 78.21 signals overbought conditions.
• The 1-hour chart is neutral with RSI14 at 52.9 and MACD nearly flat, confirming momentum has stalled after the spike.
• Jupiter Neurosciences carries a market cap of just $5.0 million, making the stock prone to outsized moves on clinical news flow.
• Daily pivot sits at 7.63 with S1 at 4.11; failure to hold above 5.93 on the 1H chart would be an early warning of deeper pullback risk.

Daily Structure: Jupiter Neurosciences Stock Still Bullish but Under Pressure

Jupiter Neurosciences, Inc. stock remains in a technically bullish daily trend. However, the August 21 session revealed clear distribution signals that challenge the trend’s sustainability.

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