← All tickers · NASDAQ · Biotech / Healthcare
AMPH
Amphastar Pharmaceuticals, Inc. — live penny stock scanner data, RVOL, VWAP, and vibe signals.
Start free trial — set AMPH alerts & live intraday →Snapshot data may be delayed up to 60 seconds. Not financial advice.
🍣 Fresh = on the move today · 🍱 Leftover = yesterday's fresh, day-old · ⛽ Gas Station Sushi = YOLO rocket, sketchy stock — you might win, you might die · 🤢 Old = the worst, stale or selling. Full explainer →
Stalk Rating measures how many traders have AMPH on their radar. Talk Rating measures live chatter intensity right now — the FOMO signal. Sign up free to see today's Talk Rating.
Daily history. Sign in for live intraday, alerts, and the live scanner.
Reading today's tape on AMPH…
For the catalyst breakdown — news, filings, halts, and Ninja vibe signals — start a free trial (no card required).
Float size is public data. Live short interest, days-to-cover and the Ninja Squeeze Score are members-only — unlock with a free trial.
Confirmed earnings dates, FDA decisions, conference dates, and ex-div for AMPH land in your inbox the day they're announced — start free trial.
About Amphastar Pharmaceuticals, Inc. (AMPH)
Amphastar Pharmaceuticals Inc is a bio-pharmaceutical company focusing on developing, manufacturing, marketing, and selling technically challenging generic and proprietary injectable, inhalation, and intranasal products, as well as insulin active pharmaceutical ingredient (or insulin API products. The company's finished products are used in hospital or urgent care clinical settings and are contracted and distributed through group purchasing organizations and drug wholesalers. The company has one reportable segment: pharmaceutical products. Geographically, the business presence of the firm is seen in the United States, China, and France, of which the U.S. accounts for the majority of the revenue.
AMPH trades on NASDAQ and is tracked by the PennyStock.Ninja real-time scanner. The scanner monitors AMPH for premarket gaps, unusual relative volume (RVOL), VWAP reclaims and rejections, and vibe signals such as the Surfer breakout, Ninja stealth accumulation, and Fade caution patterns. Biotech and healthcare names like this one are highly catalyst-driven — FDA decisions, clinical trial results, and PDUFA dates can move the stock 50-200% in a single session, so position sizing and stop discipline matter more here than in any other sector.
What to watch on AMPH
Like AMPH? Check out similar stocks
Other Biotech / Healthcare names the Ninja is stalking right now — live prices update as you scroll:
Want the Ninja's full read on these — Heat Index, Wave Likelihood, live alerts when they break out? Start your free 7-day trial → (no card required)
More Biotech / Healthcare tickers tracked by the scanner
RNTX · NEUP · LIMN · KRMD · OPK · KURA · MBX · KPTI · KPRX · GH · LTRN · ANIK · browse all
Penny Stock Scanner · Best Penny Stocks To Watch Today · Penny Stocks Under $5 · Biotech / Healthcare Penny Stocks
Frequently asked questions about AMPH
Why is AMPH moving today?
AMPH (Amphastar Pharmaceuticals, Inc.) moves on relative volume (RVOL), VWAP behavior, sector rotation, and catalysts like earnings, FDA decisions, contract wins, or unusual options flow. See the live "Why is AMPH moving today?" panel above for an auto-generated read on today's tape, and the news section for current headlines.
Is AMPH a good penny stock to buy?
PennyStock.Ninja does not give buy or sell recommendations on AMPH. We give you the data — live RVOL, VWAP, float, short interest, analyst consensus, and vibe signals — so you can make your own decision. Always do your own research and never risk more than you can afford to lose.
What is AMPH's RVOL and why does it matter?
RVOL compares AMPH's current volume to its 30-day average. RVOL above 3× often signals a real catalyst — but watch the price action. High RVOL with the stock dumping below VWAP is distribution, not opportunity.
When does AMPH report earnings?
Earnings dates for AMPH are tracked in the PennyStock.Ninja scanner. See the "Upcoming Catalysts" panel above for the scanner's current estimate. Amphastar Pharmaceuticals, Inc. typically reports quarterly; check the company's investor relations page for the next confirmed date.
What is AMPH's float and short interest?
AMPH float is shown in the "Short Interest & Float" panel above. Low-float names (under 75M shares) with elevated short interest can squeeze violently — always check both before sizing into a momentum trade. Live short interest, days-to-cover, and the Ninja Squeeze Score are members-only.
How can I get alerts on AMPH?
Sign up for a free 7-day PennyStock.Ninja trial (no credit card required) to set real-time alerts on AMPH for premarket gaps, RVOL spikes, VWAP reclaims, halts, and Ninja vibe signals.
Glossary quick reference
New to penny stock day trading? See the full glossary and the vibe icons explained page for every signal the scanner uses.
Create free account — unlock the live scanner →Not financial advice. AMPH data is delayed and may not reflect current market conditions. Always verify with your broker.