Lark Research is an independent investment research provider founded in 1991 by Stephen P. Percoco. Steve produces short- and long-form research reports on publicly traded companies and reviews of economic and financial market trends. His Risk/Reward blog provides commentary and analysis on companies, industries, sectors and markets.
Risk/Reward
GEHC reported 26Q3 revenues of $5.51 billion, up 7.2% YOY. Excluding acquisitions and currency, organic revenues increased 6.2%. Revenues rose 13.0% in Pharmaceutical Diagnostics (PDx),…
Read analysis →The Consumer Price Index for All Urban Consumers (CPI-U) rose 0.59% on a non-seasonally-adjusted (NSA) basis in September 2026. On a seasonally-adjusted (SA) basis, the…
Read analysis →The launch of LYMPHIR is underway. Citius reported $7.1 million of revenues for the nine months ended June 30. However, its YTD net loss widened…
Read analysis →Research focus
Lark Research provides regular research coverage primarily on U.S.-based publicly traded companies and the U.S. economy, as well as certain industries and asset classes. It also offers customized investment research services on a contract basis.
Explore research servicesAccounting and financial reporting
Why principles-based standards need stronger oversight and a more active role for investors in financial reporting.
Accounting and financial reporting
How to use non-GAAP measures to assess company performance, and where common adjustments can mislead.
Fixed income investing
Quarterly analysis of TIPS returns, yields and inflation adjustments, with comparisons to U.S. Treasurys.