Mario Gabelli's position in PNM Resources is currently worth $25.4 Million. That's 0.27% of their equity portfolio (96th largest holding). The first PNM Resources trade was made in Q3 2002. Since then Mario Gabelli bought shares sixteen more times and sold shares on 53 occasions. The stake costed the investor $7.9 Million, netting the investor a gain of 222% so far.