Why Rhythm Pharmaceuticals, Inc. (RYTM) stock moved
Updated Sep 16, 2026
Rhythm Pharmaceuticals, Inc. (RYTM) shares tumbled 5.5% to $96.77 as of September 16, 2026, a significant decline from the prior close of $102.44. BestStocks flagged the session as a major change for RYTM. Below, we break down what changed for RYTM, why it matters for investors, how the stock reacted, and the catalysts on the calendar.
What happened
RYTM fell 5.5% to $96.77
RYTM tumbled 5.5% in its latest session, moving from $102.44 to $96.77.
RiskMedium confidence
Rel. volume
1.2×
Normal
Vs peers
—
No comparable peers
Market cap
$6.6B
NASDAQ Global Market
Analyst target
$144
+48.6% vs price
Price chart
Aug 17 – Sep 15
E earnings
F filing
A analyst
V/N other
click a marker to highlight
Change events — click to jump to details
What it means for Rhythm Pharmaceuticals, Inc. investors
For Rhythm Pharmaceuticals, Inc. investors, the recent signals add up to a bearish shift. On the constructive side: Rhythm Pharmaceuticals, Inc. (RYTM) moved +1.45% from $113.98 to $115.63 on 2026-08-07, reaching a new 30-day high; Rhythm Pharmaceuticals, Inc. (RYTM) moved +5.52% from $100.25 to $105.78 on 2026-08-04. Weighing against that: Material negative event; Sharp 5.5% decline — elevated risk. Wall Street's consensus price target sits at $143.83, implying +48.6% upside from $96.77. BestStocks rates the overall signal quality medium (60/100). With earnings roughly 48 days out, the next report is the most likely near-term test of the move.
RYTM price reaction
RYTM last traded at $96.77, down $5.67 (-5.53%) from the previous close of $102.44. The session traded on 1.2× average volume (normal), so participation was unremarkable. Over the past month the stock has ranged between $96.77 and $115.73, and it currently sits about 0% of the way up that band.
Bullish and bearish analyst opinions on Rhythm Pharmaceuticals, Inc. (RYTM)
The consensus analyst price target on Rhythm Pharmaceuticals, Inc. (RYTM) is $143.83, 48.6% above the recent $96.77. Over the past 90 days analysts logged 0 upgrades, 5 maintains, and 0 downgrades. Here is how the bullish and bearish cases on RYTM line up.
▲ The bullish case
+Wall Street's consensus price target of $143.83 implies +48.6% upside from $96.77.
+The Street's most bullish target is $160.00 (+65.3%).
+Rhythm Pharmaceuticals, Inc. (RYTM) moved +1.45% from $113.98 to $115.63 on 2026-08-07, reaching a new 30-day high.
▼ The bearish case
−Material negative event.
−Sharp 5.5% decline — elevated risk.
−Rhythm Pharmaceuticals fell 2.47% to $102.30 on September 4, 2026, driven by a confluence of insider profit-taking, valuation concerns, and seasonal biotech weakness.
Bull vs bear balanceBearish Shift
BearishNeutralBullish
Weighing both sides, BestStocks' composite read of recent signals is bearish, as the bull-versus-bear meter above shows. This is an educational summary of the bull and bear case, not investment advice.
Analyst price targets and ratings are FMP consensus figures as of Sep 15, 2026; other aggregators may differ. High and low targets show the range of estimates, not forecasts.
Rhythm Pharmaceuticals, Inc. (RYTM) moved -4.81% from $101.66 to $96.77 on 2026-09-15. We checked news, earnings announcements, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. The move coincided with modestly elevated volume (1.5x the 5-day average) and marked a new 30-day low.
Material / Earnings2026-09-14-2.2%
Rhythm Pharmaceuticals, Inc. (RYTM) moved −2.68% from $105.26 to $102.44 on 2026-09-14. We checked news, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. Volume was 1.5× the 5-day average, suggesting modestly elevated trading activity but no clear directional driver.
Material / Earnings2026-09-09-0.7%
Rhythm Pharmaceuticals, Inc. (RYTM) moved +0.76% from $100.30 to $101.06 on 2026-09-09. We checked news, earnings announcements, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. The move coincided with RYTM reaching a new 30-day low, with volume near its 5-day average.
Material / Earnings2026-09-08-0.9%
Rhythm Pharmaceuticals, Inc. (RYTM) moved +1.54% from $100.26 to $101.80 on 2026-09-08. We checked news, earnings announcements, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. The move appears to be technical, with RYTM reaching a new 30-day low on volume near its 5-day average.
Material / Earnings2026-08-31-1.0%
Rhythm Pharmaceuticals, Inc. (RYTM) moved +0.11% from $106.01 to $106.13 on 2026-08-31. We checked news, earnings announcements, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. Volume was 2.1x the 5-day average, indicating elevated trading activity despite the modest price move.
Material / Earnings2026-08-28-4.8%
Rhythm Pharmaceuticals, Inc. (RYTM) moved -2.71% from $110.15 to $107.17 on 2026-08-28. We checked news, earnings announcements, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. Volume was near its 5-day average (1.1x), indicating the move was not driven by unusual trading activity.
Material / Earnings2026-08-20-5.9%
Rhythm Pharmaceuticals, Inc. (RYTM) moved -4.59% from $114.17 to $108.92 on 2026-08-20. We checked news, earnings announcements, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. Volume remained near its 5-day average, suggesting the move lacked unusual selling pressure.
Material / Earnings2026-08-12+4.2%
Rhythm Pharmaceuticals, Inc. (RYTM) moved +5.06% from $111.94 to $117.60 on 2026-08-12, reaching a new 30-day high. We checked news, earnings announcements, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found.
Upcoming catalysts & outlook
Next earnings
2026-11-03 (est.)
in 48 days
Thesis shift
Bearish Shift
bearish signal
Risk level
High
from change events
Frequently asked questions about RYTM
Why did Rhythm Pharmaceuticals, Inc. (RYTM) stock move?
RYTM tumbled 5.5% to $96.77. No single company-specific catalyst was confirmed during the move window, and it looks technical.
How much did RYTM stock fall?
RYTM lost 5.53% ($5.67) versus the prior close of $102.44, last trading at $96.77 on 1.2× average volume.
When is Rhythm Pharmaceuticals, Inc.'s next earnings date?
RYTM's next earnings report is estimated for 2026-11-03 — about 48 days away.
What is the analyst price target for RYTM?
The consensus analyst price target for RYTM is $143.83, about 48.6% above the current $96.77. Over the past 90 days, analysts recorded 0 upgrades, 5 maintains, and 0 downgrades.
How BestStocks tracks RYTM
This page is generated automatically by BestStocks' change-detection system after its price and volume cleared RYTM-specific materiality thresholds, triggering an evidence check. It draws on 20 tracked change events for RYTM, cross-checked against the data sources listed below. Price, volume, and market-capitalization figures are the live intraday quote as of September 16, 2026 and refresh as new information is detected; for companies with multiple share classes, market-cap figures can differ by data source. Analyst price targets and ratings are FMP consensus. This is an educational summary of what changed and why — not personalized investment advice.
