Largest Positive Opening Gaps for MCO

How does MCO usually behave after a large gap-up move?

Using the 12 largest gap-up moves over the last 3 years in MCO stock, the average move was +2.3% with the single largest opening gap of +4.3% occurring on 8-Apr-2025. Following the opening, MCO tended to drift lower to the closing price 75% of the time for an average loss of -0.7%. The following day, MCO stock price averaged +1.1% gains, with up moves more frequent than down moves. The stock was up 67% of the time in that period one day after these significant gaps. Earnings dates have been excluded from this analysis.

Catalysts

9 of MCO's 12 largest moves corresponded with a large gap up in the overall market.

Open-to-High and Open-to-Low

The largest percentage gain from the open to the high of the day was +2.6% on 2-Nov-2023, while the biggest drop from the open to the low was -5.9% on 8-Apr-2025. On average, the MCO stock price gain from the opening price to the highest point of the day was +1.0%, and the average drop to the lowest point was -2.1%.

Day Drift Open-to-Close

The best performance in MCO stock price from opening price to closing price (referred to as the "drift" for the day) was on 2-Nov-2023 for a +2.5% gain after the stock gapped up +2.0% at the open. The worst worst return from the opening price to the closing price was on 8-Apr-2025 when the stock lost -4.4% after the stock gapped up +4.3%. Overall in the 12 available observations, the stock drifted lower 75% of the time for an average loss of -0.7%.