Close data update at 6/1/2020
| Company | % | Close | Open | Low | Volume | Volumi |
| Mailup | -1.48% | 4.67 | 4.74 | 4.65 | 4.74 | 1,900 |
| Maire Tecnimont | +1.55% | 1.438 | 1.438 | 1.434 | 1.47 | 1,151,405 |
| Maps | +1.20% | 2.52 | 2.55 | 2.52 | 2.56 | 16,000 |
| Marr | +0.76% | 13.24 | 13.14 | 12.76 | 13.58 | 206,082 |
| Marzocchi Pompe | +1.04% | 3.9 | 3.9 | 3.9 | 3.9 | 250 |
| Masi Agricola | +1.26% | 2.42 | 2.39 | 2.39 | 2.44 | 4,195 |
| Massimo Zanetti Beverage | +3.73% | 3.89 | 3.78 | 3.78 | 4 | 45,984 |
| Matica Fintec | +3.64% | 1.538 | 1.488 | 1.486 | 1.538 | 13,500 |
| Mediaset | +1.23% | 1.56 | 1.567 | 1.557 | 1.597 | 2,032,908 |
| Mediobanca | +8.09% | 6.308 | 6.6 | 6.162 | 6.646 | 17,918,192 |
| Merck | UNC. | 104 | 104 | 104 | 104 | 400 |
| Micron Technology | -0.02% | 42.06 | 42.935 | 41.965 | 42.935 | 328 |
| Microsoft Corp | +0.56% | 163.72 | 164 | 163.4 | 164.72 | 535 |
| Mittel | -2.47% | 1.58 | 1.55 | 1.55 | 1.58 | 1,489 |
| Molmed | +2.65% | 0.503 | 0.503 | 0.5 | 0.506 | 14,843,354 |
| Moncler | +0.72% | 33.69 | 34.05 | 32.7 | 34.5 | 713,925 |
| Mondadori | -1.90% | 1.034 | 1.1 | 1.024 | 1.1 | 807,758 |
| Mondo Tv | UNC. | 2.13 | 2.13 | 2.11 | 2.17 | 287,897 |
| Mondo Tv France | -0.46% | 0.043 | 0.042 | 0.042 | 0.044 | 936,000 |
| Mondo Tv Suisse | UNC. | 1.075 | 1.08 | 1.075 | 1.08 | 2,400 |
| Monnalisa | -0.69% | 2.86 | 2.84 | 2.84 | 2.86 | 1,900 |
| Monrif | -1.80% | 0.109 | 0.115 | 0.109 | 0.116 | 87,666 |
| Munich Re | UNC. | 205.6 | --- | --- | --- | --- |
| Mutuionline | -2.91% | 17.38 | 17.9 | 17.26 | 18.12 | 11,549 |
