In spite of common opinion short term capital doesn't became a danger for financial stabilization in Poland. In the last years one can observe the stable, growing process of portfolio investment from abroad. The curve illustrating this event is much more smoothly than figures illustrating the inflow of direct investment. It was caused probably by the conjugation of two factors: first one - the non-disrupted advantage of security investment in Poland comparing to such investment in West Europe, second one - the growing trust to the Polish financial system. For seventeen years it was never jeopardized by any break down followed by non responsible reform or budget terms. The currency reserves were enough, public debt lower than the European average. The process of improving Polish financial system was still in progress. During this time foreign investors were accustomed that they money is safe almost so much as in developed countries, but in the sake of growing capacity of emerging markets, expectation of return could be higher. There were no significant event disturbing sentiment to the investment in Polish securities.