On July 2025, GMX was exploited in a price manipulation, resulting in approximately $41M in losses. That makes the GMX exploit the 15th largest DeFi incident out of 690 documented in our archive.
Attack Mechanics: How the GMX Price Manipulation Played Out
Exploit Class Applied to GMX
The GMX incident on July 9, 2025 is classified as a Price Manipulation. The attacker drives the on-chain price of a token up or down within a single transaction to extract value from the protocol. In the full archive, GMX is 1 of 85 documented price manipulation incidents.
GMX in Context
At $41M, the GMX exploit is a major ($10M–$100M) event compared to the largest same-class incident in our archive — CreamFinance (2021) at $130M.
Prior Price Manipulation Before GMX
The nearest price manipulation incident before GMX was ResupplyFi, 13 days earlier on June 26, 2025 ($9.6M lost). The same exploit class surfaced again within the price manipulation attack surface.
GMX Vulnerability Signature
The primary source categorises the GMX exploit specifically as “Share price manipulation”. This narrower label is entity-specific: it reflects how the GMX contract failed, rather than the broad price manipulation pattern alone.
Impact & Recovery for GMX
GMX Loss Figure
The GMX exploit caused $41,000,000 in losses — a major ($10M–$100M) incident and the 4th largest of 96 documented in 2025. This single incident represents 2.2% of all tracked losses that year.
Where GMX Sits Among Price Manipulation Attacks
Ranked by loss size, GMX is the 2nd largest of 85 price manipulation incidents documented. That puts the GMX loss above the class average of $3.9M.
Timeline Since the GMX Incident
The GMX exploit occurred 9 months ago (279 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.
Primary Reference for GMX
Public post-mortem / on-chain analysis for the GMX incident: view source.
FAQ
How much did GMX lose?
The GMX exploit in July 2025 resulted in $41,000,000 in losses — the 4th largest of 96 DeFi incidents that year.
When did the GMX hack happen?
The GMX exploit was recorded on July 9, 2025 — 279 days ago.
What type of exploit hit GMX?
The GMX incident is classified as a Price Manipulation. The attacker drives the on-chain price of a token up or down within a single transaction to extract value from the protocol.
How common is the Price Manipulation pattern seen at GMX?
Our archive contains 85 documented price manipulation incidents. The GMX incident is one of them.
How does GMX compare to the largest Price Manipulation attack?
The largest price manipulation incident in our archive is CreamFinance (2021) at $130M. The GMX loss is $41M.
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To evaluate if the combination improves prediction accuracy compared to using each type of data alone.