Mario Gabelli's position in PNM Resources is currently worth $31.5M. That's 0.29% of their equity portfolio (97th largest holding). The first PNM Resources trade was made in Q3 2002. Since then Mario Gabelli bought shares nineteen more times and sold shares on 59 occasions. The stake costed the investor $8.66M, netting the investor a gain of 265% so far.