Close data update at 3/22/2019
| Company | % | Close | Open | Low | Volume | Volumi |
| M&C | -1.60% | 0.037 | --- | 0.037 | 0.038 | 100,460 |
| Mailup | -4.15% | 3 | --- | 3 | 3.1 | 24,960 |
| Maire Tecnimont | +0.06% | 3.514 | 3.544 | 3.478 | 3.568 | 521,132 |
| Maps | +0.03% | 3.022 | --- | 2.97 | 3.045 | 56,000 |
| Marr | -1.44% | 20.5 | 20.66 | 20.42 | 20.8 | 28,319 |
| Masi Agricola | -1.02% | 3.87 | 3.91 | 3.87 | 3.95 | 12,000 |
| Massimo Zanetti Beverage | -2.95% | 5.92 | 6.07 | 5.92 | 6.17 | 15,872 |
| Mediacontech | -2.71% | 0.502 | 0.516 | 0.493 | 0.516 | 8,439 |
| Mediaset | -1.46% | 2.775 | 2.831 | 2.75 | 2.831 | 1,504,944 |
| Mediobanca | -0.80% | 8.946 | 9.068 | 8.908 | 9.074 | 4,094,766 |
| Merck | -0.44% | 99.32 | 99.62 | 99.32 | 99.62 | 70 |
| Metro | UNC. | 13.41 | --- | --- | --- | --- |
| Micron Technology | +0.78% | 38.8 | 38.7 | 38.6 | 38.8 | 253 |
| Microsoft Corp | -0.19% | 104.8 | 105.4 | 104.2 | 106.4 | 341 |
| Mittel | +1.15% | 1.76 | --- | 1.73 | 1.76 | 11,522 |
| Molmed | -0.90% | 0.329 | 0.332 | 0.328 | 0.336 | 1,876,471 |
| Moncler | -1.83% | 35.34 | 36.17 | 35.31 | 36.43 | 1,262,625 |
| Mondadori | -3.37% | 1.662 | 1.724 | 1.636 | 1.724 | 431,418 |
| Mondo Tv | -0.47% | 1.278 | 1.27 | 1.27 | 1.292 | 119,548 |
| Mondo Tv France | +1.43% | 0.028 | 0.028 | 0.027 | 0.029 | 481,000 |
| Mondo Tv Suisse | +1.40% | 0.87 | 0.87 | 0.87 | 0.87 | 800 |
| Monnalisa | UNC. | 8.38 | 8.24 | 8.24 | 8.38 | 400 |
| Monrif | -1.65% | 0.179 | 0.185 | 0.176 | 0.188 | 501,745 |
| Munich Re | UNC. | 209.5 | --- | --- | --- | --- |
| Mutuionline | -2.59% | 18.04 | 18.48 | 18.02 | 18.5 | 10,636 |
