Korro Bio, Inc. (KRRO)Healthcare | Biotechnology | Cambridge, United States | NasdaqCM
14.28 USD
-0.11
(-0.764%) ⇩
(April 20, 2026, 4 p.m.
EDT)
Short-term: ★☆☆☆☆ | Long-term: ★★☆☆☆ | Dividends: ☆☆☆☆☆ |
Hot Take | April 19, 2026, 12:37 a.m. EDT
CRITICAL EARNINGS CAVESITY: KRRO is caught in a 'profit warning' trap with a 43% revenue decline and mounting losses (-$49M FCF). While sentiment has a recent catalyst-driven bounce, the 2026 July options data reveals a brutal wall of put-only Open Interest at lower strikes, signaling institutional hedging against further de-rating or a distinct bearish long-term conviction that outweighs the short-term speculative upside. |
| Model | MAE |
|---|---|
| AutoETS ✓ | 0.316451 |
| AutoARIMA | 0.316453 |
| MSTL | 0.329161 |
| AutoTheta | 0.975635 |
Forecast horizon: 45 days | Selected: AutoETS
| Forecast Reliability | |
|---|---|
| Score | 74% |
| H-stat | 1.18 |
| Ljung-Box p | 0.000 |
| Jarque-Bera p | 0.950 |
| Excess Kurtosis | -0.16 |
| Attribute | Value |
|---|---|
| Sector | Healthcare |
| Debt to Equity Ratio | 84.539 |
| Revenue per Share | 0.68 |
| Market Cap | 205,954,320 |
| Forward P/E | -1.88 |
| Beta | 2.43 |
| Website | https://www.korrobio.com |
As of April 19, 2026, 12:37 a.m. EDT: The options market shows significant divergence based on expiration. Short-term (April 17, 2026) has high volume in both directions, but notably heavy put volume (3.6k) concentrated deep ITM at the 20.0 strike, suggesting a 'risk insurance' floor or defensive positioning against further downside. However, this same strike also shows high call volume, indicating volatility premium. Medium-term (July 17) exhibits massive downside skew: 704 call contracts vs. 0 put volume, yet the Open Interest (OI) is heavily weighted on ITM puts (903 OI) while calls are nearly absent (704 ITM OI, 0 OTM). This heavy put OI at strikes below current price (12.5, 10.0 in July) creates significant resistance. Long-dated options show negligible activity. IV is elevated at the front month (6.31-8.52) compared to later months, reflecting uncertainty around the upcoming earnings.
| Attribute | Value |
|---|---|
| 52 Week Change | -0.12580347 |
| Address1 | 60 First Street |
| Address2 | 2nd Floor Suite 250 |
| All Time High | 2,918.5 |
| All Time Low | 5.204 |
| Ask | 14.45 |
| Ask Size | 1 |
| Audit Risk | 8 |
| Average Daily Volume10 Day | 108,340 |
| Average Daily Volume3 Month | 243,236 |
| Average Volume | 243,236 |
| Average Volume10Days | 108,340 |
| Beta | 2.43 |
| Bid | 14.16 |
| Bid Size | 1 |
| Board Risk | 10 |
| Book Value | 5.462 |
| City | Cambridge |
| Compensation As Of Epoch Date | 1,767,139,200 |
| Compensation Risk | 9 |
| Country | United States |
| Crypto Tradeable | 0 |
| Currency | USD |
| Current Price | 14.28 |
| Current Ratio | 6.901 |
| Custom Price Alert Confidence | HIGH |
| Date Short Interest | 1,774,915,200 |
| Day High | 14.5428 |
| Day Low | 13.33 |
| Debt To Equity | 84.539 |
| Display Name | Korro Bio |
| Earnings Timestamp | 1,773,345,600 |
| Earnings Timestamp End | 1,778,097,600 |
| Earnings Timestamp Start | 1,778,097,600 |
| Ebitda | -83,062,000 |
| Ebitda Margins | 0.0 |
| Enterprise To Ebitda | -2.098 |
| Enterprise To Revenue | 27.266 |
| Enterprise Value | 174,284,320 |
| Eps Current Year | -7.35286 |
| Eps Forward | -7.5925 |
| Eps Trailing Twelve Months | -12.48 |
| Esg Populated | 0 |
| Exchange | NCM |
| Exchange Data Delayed By | 0 |
| Exchange Timezone Name | America/New_York |
| Exchange Timezone Short Name | EDT |
| Fifty Day Average | 12.0789 |
| Fifty Day Average Change | 2.2010994 |
| Fifty Day Average Change Percent | 0.1822268 |
| Fifty Two Week Change Percent | -12.580347 |
| Fifty Two Week High | 55.89 |
| Fifty Two Week High Change | -41.61 |
| Fifty Two Week High Change Percent | -0.74449813 |
| Fifty Two Week Low | 5.204 |
| Fifty Two Week Low Change | 9.076 |
| Fifty Two Week Low Change Percent | 1.7440431 |
| Fifty Two Week Range | 5.204 - 55.89 |
| Financial Currency | USD |
| First Trade Date Milliseconds | 1,570,109,400,000 |
| Float Shares | 9,581,202 |
| Forward Eps | -7.5925 |
| Forward P E | -1.8808033 |
| Free Cashflow | -49,361,752 |
| Full Exchange Name | NasdaqCM |
| Full Time Employees | 58 |
| Gmt Off Set Milliseconds | -14,400,000 |
| Governance Epoch Date | 1,775,001,600 |
| Gross Margins | 0.0 |
| Gross Profits | -48,741,000 |
| Has Pre Post Market Data | 1 |
| Held Percent Insiders | 0.00566 |
| Held Percent Institutions | 0.78736997 |
| Implied Shares Outstanding | 14,422,572 |
| Industry | Biotechnology |
| Industry Disp | Biotechnology |
| Industry Key | biotechnology |
| Is Earnings Date Estimate | 1 |
| Language | en-US |
| Last Fiscal Year End | 1,767,139,200 |
| Last Split Date | 1,699,228,800 |
| Last Split Factor | 1:50 |
| Long Business Summary | Korro Bio, Inc., a biopharmaceutical company, engages in the discovering, developing, and commercializing of genetic medicines based on editing RNA for the treatment of rare and highly prevalent diseases in the United States. The company's lead product candidate is KRRO-121 for the treatment for hyperammonemia. It uses its RNA editing platform, Oligonucleotide Promoted Editing of RNA to generate differentiated RNA editing product candidates. The company is also developing programs for Parkinson's disease, Amyotrophic lateral sclerosis, severe drug-associated anesthetics, and other pain indications. Korro Bio, Inc. has a collaboration agreement with Novo Nordisk A/S to treat cardiometabolic diseases. Korro Bio, Inc. was founded in 2018 and is based in Cambridge, Massachusetts. |
| Long Name | Korro Bio, Inc. |
| Market | us_market |
| Market Cap | 205,954,320 |
| Market State | PRE |
| Max Age | 86,400 |
| Message Board Id | finmb_619256344 |
| Most Recent Quarter | 1,767,139,200 |
| Net Income To Common | -117,260,000 |
| Next Fiscal Year End | 1,798,675,200 |
| Non Diluted Market Cap | 205,954,313 |
| Number Of Analyst Opinions | 7 |
| Open | 14.21 |
| Operating Cashflow | -78,561,000 |
| Operating Margins | -12.29334 |
| Overall Risk | 9 |
| Payout Ratio | 0.0 |
| Phone | 617 468 1999 |
| Pre Market Change | -0.21560001 |
| Pre Market Change Percent | -1.509804 |
| Pre Market Price | 14.0644 |
| Pre Market Time | 1,776,776,786 |
| Previous Close | 14.39 |
| Price Eps Current Year | -1.9421014 |
| Price Hint | 2 |
| Price To Book | 2.6144269 |
| Price To Sales Trailing12 Months | 32.22064 |
| Profit Margins | 0.0 |
| Quick Ratio | 6.377 |
| Quote Source Name | Nasdaq Real Time Price |
| Quote Type | EQUITY |
| Recommendation Key | none |
| Region | US |
| Regular Market Change | -0.110001 |
| Regular Market Change Percent | -0.764424 |
| Regular Market Day High | 14.5428 |
| Regular Market Day Low | 13.33 |
| Regular Market Day Range | 13.33 - 14.5428 |
| Regular Market Open | 14.21 |
| Regular Market Previous Close | 14.39 |
| Regular Market Price | 14.28 |
| Regular Market Time | 1,776,715,201 |
| Regular Market Volume | 71,540 |
| Return On Assets | -0.32134998 |
| Return On Equity | -1.10699 |
| Revenue Growth | -0.431 |
| Revenue Per Share | 0.68 |
| Sand P52 Week Change | 0.34445214 |
| Sector | Healthcare |
| Sector Disp | Healthcare |
| Sector Key | healthcare |
| Share Holder Rights Risk | 7 |
| Shares Outstanding | 14,422,571 |
| Shares Percent Shares Out | 0.073699996 |
| Shares Short | 1,062,337 |
| Shares Short Previous Month Date | 1,772,150,400 |
| Shares Short Prior Month | 1,042,910 |
| Short Name | Korro Bio, Inc. |
| Short Percent Of Float | 0.0874 |
| Short Ratio | 4.19 |
| Source Interval | 15 |
| State | MA |
| Symbol | KRRO |
| Target High Price | 30.0 |
| Target Low Price | 8.0 |
| Target Mean Price | 20.0 |
| Target Median Price | 22.0 |
| Total Cash | 75,156,000 |
| Total Cash Per Share | 5.211 |
| Total Debt | 43,486,000 |
| Total Revenue | 6,392,000 |
| Tradeable | 0 |
| Trailing Annual Dividend Rate | 0.0 |
| Trailing Annual Dividend Yield | 0.0 |
| Trailing Eps | -12.48 |
| Trailing Peg Ratio | None |
| Triggerable | 1 |
| Two Hundred Day Average | 18.69535 |
| Two Hundred Day Average Change | -4.415351 |
| Two Hundred Day Average Change Percent | -0.23617375 |
| Type Disp | Equity |
| Volume | 71,540 |
| Website | https://www.korrobio.com |
| Zip | 2,141 |