Looking at the last 8 quarters, our ability to exceed the rule of 40 is not a series of anomaly or a one-off success. Quite the opposite, we are outperforming the industry because we are built on the fundamental recognition that adtech must be able to respond, underlying response to the trend with ability and agility.
Revenue of $158.6 million, reflecting 31% year-over-year growth, the highest quarterly revenue since 2014. Adjusted EBITDA of $33 million, 21% of revenue compared with 15% last year, reflecting 87% year-over-year growth. Net -- GAAP net income of $25.6 million, 141% year-over-year growth, the highest quarterly net income since 2014. Non-GAAP diluted earnings per share of $0.61, reflecting 53% year-over-year growth.
The third quarter revenue was $158.6 million, an increase of 31% year-over-year. The strong continued revenue growth reflected a CAGR 38%. Display advertising revenue increased by 26% year-over-year to $86.8 million, 55% of total revenue. Market adoption of our holistic video platform solution continued to rise. Video revenue more than 3% year-over-year, representing 44% of display advertising revenue. The number of video platform publishers increased by 88% year-over-year from 34% to 64%, and the revenue from retained video platform publishers increased by 67% year-over-year.
Third quarter OpEx and COGS amounted to $31.7 million or 20% of revenue compared with $33.1 million or 27% of revenue last year. This impressive achievement reflects the execution of our business strategy.
On a GAAP basis, net income was $25.6 million or $0.53 per diluted share, an increase of 141% compared with $10.6 million or $0.28 per diluted share in the third quarter of 2021. On a non-GAAP basis, net income was $29.9 million or $0.61 per diluted share, an increase of 94% compared with $15.4 million or $0.40 per diluted share in the third quarter of 2021.
Adjusted EBITDA of $33 million, reflecting 94% year-over-year growth, adjusted EBITDA margin of 21% compared with 15% last year. Adjusted EBITDA to revenue, excluding TAC increased from 37% in the third quarter of 2021 to 51% during the third quarter of 2022.
Operating cash flow was $34.7 million compared with $14.2 million in the third quarter of 2021, reflecting 145% year-over-year growth. As of September 30, 2022, cash, cash equivalents, and short-term bank deposits of $390 million compared with $322 million as of December 31, 2021; continuously generating positive cash flow.
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