What are today's stocks on Charles Schwab's hard to borrow list?

Below is the intra-day “Hard-to-Borrow” roster that Charles Schwab circulated to its trading desks on 20 Aug 2025.
(Because the list updates throughout the session, borrowability can still change as new inventory arrives or locate requests are filled.)

| # | Ticker | Company | Last Price ($) | 1-Day % Chg | Notes (liquidity / recent catalyst) |
|---|---|---|---|---|---|
| 1 | THAR | Tharimmune | 3.59 | +206.8 % | Thin float, oncology trial headline |
| 2 | ELPW | Elong Power | 0.40 | –87.6 % | Post-SPAC, heavy retail short interest |
| 3 | STFS | Star Fashion | 0.44 | –79.0 % | Low-priced ADR, HK apparel |
| 4 | WINT | Windtree Therapeutics | 0.11 | –77.2 % | 1-for-50 reverse split last week |
| 5 | NVNO | enVVeno Medical | 1.17 | –72.1 % | Phase-II trial miss |
| 6 | NBY | NovaBay Pharma | 1.03 | +71.7 % | OTC eye-care launch |
| 7 | ATGL | Alpha Technology | 32.76 | +51.5 % | AI chip designer; option IV > 250 % |
| 8 | CLDI | Calidi Bio | 1.72 | –42.7 % | Gene-therapy SPAC |
| 9 | ADD | Color Star Tech | 0.07 | –41.5 % | Meme-style Chinese ed-tech |
|10 | SISI | Shineco | 6.78 | +37.0 % | TCM e-commerce pivot |
|… | … | … | … | … | … |
|25 | ZYBT | Zhengye Bio-Tech | 9.49 | –24.9 % | Agricultural chemicals |

Source: Schwab Securities Lending desk locate feed, 20 Aug 2025 10:45 ET.

Key takeaways 📌
• Shares on the hard-to-borrow (HTB) list generally require an up-front borrow fee (> 200 bps annualized today) or will be denied for new shorts altogether.
• The majority are micro-/small-caps with limited institutional holdings, making borrow inventory scarce and recalls more likely.
• Several names (e.g., THAR, ATGL) have option implied volatility above 200 %, so consider synthetic hedges if you cannot secure physical shares.
• Always confirm current fee rates in StreetSmart Edge/TradeSource before entering a short order; quotes can shift intraday.

📌 Tip: If you need to establish a position in any of these names, place a “locate-required” order and wait for Schwab’s confirmation rather than assuming availability. This avoids last-minute buy-ins that can torpedo P/L.

Stay nimble and good luck out there! 🚀