"It really has been a New Zealand story rather than a global equities story driving volumes, so that is very positive."
Last year's listings for Trade Me, Summerset and for the Telecom offshoot, Chorus, had also acted as a catalyst for renewed interest in the market, he said.
The relative absence of finance companies, combined with the major banks offering low interest rates for deposits, meant that investors were becoming more aware of the "yield" stories offered by some stocks.
At the same time, exchange rate volatility could have acted as an incentive for investors to look closer to home rather than investing overseas, he said.
The picture was not so rosy for debt transactions, which fell by 14.3 per cent over the year.
Total equity transactions were worth $27.4 billion in 2011, an improvement of 27 per cent on 2010 in dollar terms. Just under $12 billion of new capital was raised on the NZX last year compared with $3.2 billion raised in 2010.
The NZSX 50 index dropped by 1 per cent over the year. The NZX itself was one of the best-performing stocks in 2011. The stock traded yesterday at $2.41, up 50 per cent from this time last year.