On the morning of December 19, 2025, American Depositary Receipts (ADRs) of Infosys Ltd. (NYSE: INFY) stunned Wall Street after surging nearly 55% within minutes of the opening bell. The ADRs jumped from a previous close of $19.08 to an intraday high of nearly $30.00, triggering multiple Limit Up–Limit Down (LULD) volatility halts on the New York Stock Exchange (NYSE).
According to the Chronicle Journal, the surge was not driven by any announcement or development from Infosys’ headquarters in Bengaluru. Meanwhile, the company’s shares on the National Stock Exchange of India (NSE) traded normally and showed no major movement, resulting in a sharp and unusual arbitrage gap between the US-listed ADRs and the domestic stock.
What Caused the Sudden Spike?
Preliminary assessments point to a technical data-feed glitch involving ticker mapping and currency conversion. Erroneous calculations of the USD-INR conversion ratio were reportedly picked up by high-frequency trading (HFT) algorithms, which interpreted the move as a legitimate price breakout.
With Indian markets already closed due to the 10.5-hour time difference between India and the US, there was no real-time price discovery anchor. Momentum-driven algorithms amplified the move in thin early-session liquidity, forcing the NYSE to halt trading multiple times to restore orderly markets.
Market Impact and Ripple Effects
For a brief period, Infosys – a company with a market capitalization of over $80 billion, was being priced as if it had undergone a dramatic revaluation. Once corrected data flowed back into the system, the ADR price retreated sharply toward its prior levels.
Other Indian ADRs also saw brief sympathy moves. Wipro and ICICI Bank recorded temporary gains of around 3%-5%, while memories of a similar data-driven anomaly in HDFC Bank earlier in 2025 resurfaced among investors.
Why This Event Matters
The Chronicle Journal notes that the incident highlights the structural risks of ADRs, including time-zone gaps, currency data dependencies, and heavy reliance on automated trading systems. Retail investors who bought near the $25-$30 range were left exposed once prices normalized.
Regulators are now expected to review how third-party data providers handle ADR conversion ratios and whether additional safeguards or algorithmic “kill switches” are required to prevent similar incidents.
Infosys Clarifies ADR Volatility
Infosys Limited said its ADRs on the NYSE saw sharp price volatility on December 19, 2025, triggering two LULD trading pauses. The company clarified there were no material events or disclosures required and issued the statement to avoid market speculation.
Key Takeaway
The Infosys ADR episode was a technical failure, not a business event. It serves as a clear warning that ADR prices can diverge sharply from underlying shares during overseas market closures. Investors are advised to use limit orders, avoid chasing opening gaps, and closely monitor currency and data-feed risks when trading foreign-listed stocks.
Bottom line: Even blue-chip global companies are vulnerable to “phantom moves” in today’s algorithm-driven markets and December 19, 2025, was a textbook example.
