市场消息：俄罗斯总统普京签署命令，为外国投资者提供额外担保。

Group 1 - The core point of the article is that President Putin of Russia has signed a decree to provide additional guarantees for foreign investors [1] Group 2 - The decree aims to enhance the security and attractiveness of investments in Russia, potentially leading to increased foreign capital inflow [1] - This move may signal a shift in Russia's approach to foreign investment amidst ongoing geopolitical tensions [1] - The additional guarantees could include legal protections and assurances against expropriation, which may help to mitigate risks perceived by foreign investors [1]