In the present time and to the days to come, the instability of the movements of the stock market is already anticipated as several investors have fully digested the effect of the results of the recent election to business trade and commerce.

Nonetheless, the more significant matter for long-term investors to question is whether or not the essential circumstances that have sustained the economy's countless sectors will significantly change after the result of the recently concluded Presidential battle.

While Trump assumes his presidency, here are the top three sectors that will possibly be affected today and in the days to come:

1. Hospital institutions

Having declared in one of his speeches during the campaign that, "When we win on Nov. 8 and elect a Republican Congress, we will be able to immediately repeal and replace Obamacare," President-elect Trump has already been frank in pronouncing that he is against the Affordable Care Act.

After the results of the election, a number of investors including the HCA Holdings (NYSE:HCA), Tenet Healthcare (NYSE:THC), and other hospital companies are already seeing the decline in their stocks by two-digit percentages during the early morning trading as their investors are already feeling the fear with the effects of the possible replacement of the healthcare reform law.

2. Renewable energy providers

During the campaign, Clinton has been known for her platform stressing the role of renewable energy in the growth of the economy of the states. Meanwhile, Trump made several comments showing his disagreement on renewable energy. According to Trump, solar power is erratic, costly, and undependable He also said that wind turbines are ugly and are also harmful to birds and to other animals.

In connection thereto, solar giants including the First Solar (NASDAQ:FSLR) and SunPower (NASDAQ:SPWR) were abruptly lesser during the pre-market trading

SunPower Corporation, an American energy company that designs and manufactures crystalline silicon photovoltaic cells, roof tiles and solar panels based on an all-back-contact solar cell invented at Stanford University, is down by 14% one hour before the opening of the market.

The company is owned 66% by Total, Europe's third largest oil company, and is publicly traded on the NASDAQ as SPWR (formerly SPWRA and SPWRB); it is a component of the Dow Jones Oil and Gas Index DJUSEN.

3. Mexican stocks

Republican Trump has established his fullest support for a stricter regulation on immigration specifically his desire to create a wall covering the U.S.-Mexican border. The decline of US and Mexico's trade relations could cause a danger on companies that currently have benefits from it. With this, huge Mexican companies including Cemex (NYSE:CX) and telecom leader America Movil (NYSE:AMX) are already experiencing the pressure with a decline of 7% and 8% respectively the early trading.