As market volatility returns and retail momentum heats up across speculative tech names, a few key stocks are capturing trader attention in a big way. Whether it’s Reddit-fueled rallies, AI defense speculation, or EV battery breakthroughs, the setups on these charts demand a closer look.
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Here are three of the most talked-about stocks heading into the final week of July 2025 — each with real volume, real price action, and real reasons to watch.
3 Penny Stocks To Watch This Week
| Stock Ticker | Company | Performance (YTD) |
|---|---|---|
| NASDAQ: OPEN | Opendoor Technologies Inc | +4.96% |
| NYSE: BBAI | BigBear.ai Holdings Inc | +1.23% |
| NYSE: QS | QuantumScape Corporation | +11.43% |
These supernovas happen faster than most traders realize. If you aren’t prepared, you miss the move. If you chase, you almost never come out ahead.
We see multiple supernovas every month. Study the chart. Learn the catalyst. And get your mind locked in for the next explosive move.
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Opendoor Technologies Inc. (NASDAQ: OPEN) — Reddit’s Latest Meme Frenzy
My first penny stock pick is Opendoor Technologies Inc. (NASDAQ: OPEN).
Opendoor Technologies has emerged as the market’s latest meme stock, exploding over 400%* in just one week with no major news to justify the move. Shares traded for as low as $0.51 in late June — they now hover near $3.50 after touching $4.97 in Monday’s session. The rally appears almost entirely driven by retail interest on platforms like Reddit’s WallStreetBets, X.com, and Stocktwits.
At one point this week, more than 1.4 billion shares traded hands in a single day — a massive surge in volume fueled by short squeeze speculation and social media momentum. The company’s short interest is estimated near 24%, which has helped accelerate the move. OPEN was briefly halted for volatility and has now become one of the most-watched names among day traders.
Why traders are watching Opendoor (OPEN):
- Parabolic meme rally driven by retail traders and high short interest
- Massive spike in volume and options activity, mirroring early GME-style setups
- Pure momentum play disconnected from business fundamentals
Despite excitement, the long-term outlook for Opendoor’s business remains challenged by macro housing headwinds and low margins. But for momentum traders, that’s irrelevant. OPEN is moving — and until the chart breaks down, it stays on the watchlist.
BigBear.ai Holdings Inc. (NYSE: BBAI) — The Palantir-Light AI Defense Penny Stock
My second penny stock pick is BigBear.ai Holdings Inc. (NYSE: BBAI).
BigBear.ai stock has more than tripled in the last three months, catching momentum as a small-cap name riding the boom in defense-focused artificial intelligence. With the Pentagon ramping up AI spending and competitors like Palantir Technologies (NASDAQ: PLTR) hitting new highs, traders are treating BBAI as a high-beta sympathy play.
The company’s software has been deployed across military simulations and joint-force exercises with allies in Japan, Canada, the UK, and Australia. That kind of exposure — paired with a $2 billion market cap and a chart making higher lows — keeps the stock in focus. Earnings are expected August 11, but momentum traders aren’t waiting for results.
Why traders are watching BigBear.ai (BBAI):
- Defense + AI = major narrative tailwinds, especially with PLTR strength
- Surged 23.5% last week with no news — sentiment is carrying the trade
- Extremely volatile, thin float, high retail interest
This is a classic Palantir sympathy play — same industry, smaller market cap, bigger moves. The stock remains volatile, but any defense-AI catalyst could trigger another multi-day breakout.
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QuantumScape Corporation (NYSE: QS) — A Battery Breakthrough or Another False Start?
My third penny stock pick is QuantumScape Corporation (NYSE: QS).
QuantumScape has delivered one of the wildest moves of the summer. The solid-state battery developer surged over 350%* in just four weeks, rallying from $4.25 in late June to a high above $15 before pulling back.
The move was triggered by the company’s announcement of progress with its “Cobra” ceramic separator — a breakthrough it claims could enable scalable manufacturing of solid-state EV batteries. Traders piled in fast, betting on the long-hyped tech finally making it to production.
But the stock has since corrected, falling over 15% in a single session before stabilizing around $12.50. With Q2 earnings scheduled for July 23, traders are now watching closely for updates on manufacturing timelines, commercial partnerships, and roadmap credibility.
Why traders are watching QuantumScape (QS):
- Huge 4-week run on solid-state battery hype and tech milestone
- Massive trading volume and elevated short interest
- Earnings could validate—or unravel—the recent rally
Despite no current revenue or confirmed deals, the excitement around battery innovation continues to attract speculative money. QS is a battleground stock now — bulls want the breakout to hold, bears see a failed hype cycle. The next few days will tell.
Bottom Line
These aren’t investments — they’re setups. Each of these stocks is moving on narrative, sentiment, and short-term catalysts. Whether you’re trading breakouts, pullbacks, or volatility itself, know the risks and don’t chase blindly.
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