27d agoThe FlyBULLISH 67Earnings
Archived explainer. For the current picture see today's HTFL page.
Why Is HEARTFLOW INC (HTFL) Stock Up Today?
By the Top Tier Newswire AI Desk · August 17, 2026 at 12:04 AM ET · reviewed against 6 wire stories
HEARTFLOW INC (HTFL) is up +35.70% in the latest session. Our newswire has captured 6 stories on HTFL across 3 sources in the last 36 hours, with AI sentiment reading bullish (avg 68/100).
Public view, delayed 4h. Every headline, price and sentiment read below — and this write-up itself — reaches Pro subscribers live. Public readers see it once it clears the delay.
Heartflow Inc (HTFL) surged 35.70% to $42.08 on Friday, marking a fresh 52-week high. The sharp move followed the company’s second-quarter results and upgraded full-year guidance, which included a raised revenue outlook and a price target increase from a key analyst. Strong sales growth and improved gross margins contributed to the bullish sentiment.
What Happened
Heartflow announced an upward revision of its FY26 revenue guidance to a range of $246 million to $250 million, up from $228 million to $232 million. The company also reported 48% year-over-year sales growth in Q2, with gross margins at 83%. Stifel raised its price target for HTFL to $45 from $40, citing the company’s performance and growth potential. The stock climbed 31.9% earlier in the week and closed Friday at a new high, reflecting investor confidence in the company’s trajectory. The Fly and Seeking Alpha highlighted the positive developments, while Yahoo Finance noted the stock’s all-time high and the role of AI in Heartflow’s offerings.
What The Data Shows
Over the past eight trading sessions, HTFL has gained 54.9%, rising from $27.17 to $42.08. The stock hit one fresh 52-week high on August 17. Insider transactions in the last 90 days include five sales totaling $3.5 million, with the most recent filing on August 12. The CEO and Chief Medical Officer have each sold shares in recent months, according to SEC filings.
What To Watch
Heartflow’s upgraded guidance and analyst price targets suggest continued optimism. Investors should monitor the breadth of coverage and any upcoming earnings reports for further momentum.
AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Public view is delayed 4 hours from real time. Not financial advice.
HTFL by the numbers
Last: $42.08Session: +35.70%7 sessions: +54.25%Coverage: 6 stories / 3 sourcesAI sentiment: 68/100 (bullish)Mkt cap: $2.3B52w: $20.13 to $43.00
The headlines behind the move
27d agoThe FlyBULLISH 63Analyst
Heartflow price target raised to $45 from $40 at Stifel
27d agoSeeking AlphaBULLISH 73Earnings
HeartFlow: An Impressive MedTech Growth Play
HeartFlow Q2: 48% sales growth, 83% gross margins, and raised guidance.
27d agoThe FlyBULLISH 68Earnings
Heartflow rises 31.9%
29d agoYahoo FinanceBULLISH 67Analyst
Analysts Are Bullish on Heartflow (HTFL) Stock. Here’s Why
Heartflow Inc. (NASDAQ:HTFL) climbed to a fresh all-time high on Friday, as investors took heart from its strong revenues in the second quarter of the year that helped boost its growth outlook for the full-year period. In intra-day trading, the stock climbed to its highest price of $42.99 before trimming gains to end the session […]
29d agoYahoo FinanceBULLISH 67Product/PR
Why Heartflow Stock Soared Today
The healthcare technology leader is using artificial intelligence to detect coronary artery disease early.
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More on HTFL: full news and sentiment history. Sentiment scores are AI-derived research signals, not financial advice.
Earlier HTFL move explainers: 2026-08-31 · 2026-08-19 · 2026-08-18 · 2026-08-17