Basics Arthur J. Gallagher & Co. Arthur J. Gallagher & Co is engaged in providing insurance brokerage and consulting services and third-party claims settlement and administration services to both domestic and international entities. IPO Date: January 2, 1990 Sector: Financial Services Industry: Insurance Market Cap: $65.58B Activated in VL: True Average Daily Range Avg Daily Range: $0.73 | 0.85% Avg Daily Range (30 D): $2.81 | 1.13% Avg Daily Range (90 D): $2.71 | 0.98% Institutional Daily Volume Avg Daily Volume: .7M Avg Daily Volume (30 D): 1.49M Avg Daily Volume (90 D): 1.23M Trade Size Avg Trade Size (Sh.): 82 Avg Trade Size (Sh.) (30 D): 34 Avg Trade Size (Sh.) (90 D): 37 Institutional Trades Total Inst.Trades: 13,674 Avg Inst. Trade: $7.92M Avg Inst. Trade (30 D): $16.3M Avg Inst. Trade (90 D): $21.45M Avg Inst. Trade Volume: .06M Avg Inst. Trades (Per Day): 2 Market Closing Trades Avg Closing Trade: $17.88M Avg Closing Trade (30 D): $62.11M Avg Closing Trade (90 D): $69.86M Avg Closing Volume: 128.95K     News Dec 13, 2025 @ 1:30 AM KBW Announces Index Rebalancing for Fourth-Quarter... Source: Neil Shapiro Oct 29, 2025 @ 12:45 PM Arthur J. Gallagher & Co. Announces Regular Fourth... Source: Prnewswire Jul 30, 2025 @ 8:15 PM Arthur J. Gallagher & Co. Announces Regular Third ... Source: Prnewswire Apr 30, 2025 @ 8:15 PM Arthur J. Gallagher & Co. Announces Regular Second... Source: Prnewswire Apr 3, 2025 @ 3:00 PM Action locale, impact national : La Coalition cana... Source: N/A Financials   TTM Q3 2025 Q2 2025 Basic EPS $6.37 $1.06 $1.43 Diluted EPS $6.26 $1.04 $1.4 Revenue $ 13.03B $ 3.37B $ 3.22B Gross Profit $ $ $ Net Income / Loss $ 1.61B $ 273.6M $ 366.2M Operating Income / Loss $ 11B $ 2.78B $ 2.7B Cost of Revenue $ $ $ Net Cash Flow $ 40.8M $ -12484M $ -1560.9M PE Ratio 41.00     Splits Jan 19, 2001:   2:1 Mar 16, 2000:   2:1