Why did housing bonds become more expensive?

According to Tejarat News, the price of housing loan bonds has fluctuated and often increased in the last six months. At present, the price of TSE bonds in 1401 increased by 3.59 percent to 106 thousand tomans. (As of this writing)
It was a few weeks ago that youth loans increased to two billion tomans. This increase in the amount of the loan led to an increase in the purchase of Tse bonds. As the purchase of securities increases, so does its price.
In some parts of the country, the housing market is in a complete recession, and with the increase in the amount of mortgages, this market will flourish, and on the other hand, the amount of transactions and the price of TSE bonds in the stock market will increase.
Experts believe that the reason for the increase in the price of housing bonds is the increase in the loan amount, and the price of TSE will probably reach 120,000 Tomans by the end of the year.
What is the price of bonds for singles and married people?
Single people in Tehran can receive facilities up to 280 million Tomans, which includes 200 million Tomans of housing purchase facilities and 80 million Tomans of fake loans. As a result, in order to receive 200 million Tomans of facilities, they have to buy 400 sheets of housing facilities, and the cost of this number of bonds is 10 million and 300 Tomans, 40 million and 920 thousand Tomans. Considering 80 million Tomans of fake loans for which they have to buy 160 sheets in the amount of 16 million and 368 thousand Tomans, the total cost of buying the bonds reaches 57 million and 288 thousand Tomans.
Tehran couples will receive up to 480 million Tomans, including 200 million Tomans of housing purchase facilities for each person and 80 million Tomans of fake loans. Couples have to buy 800 housing facilities, which cost 81 million and 840 thousand tomans, which together with the cost of 16 million and 368 thousand tomans, for which they have to buy 160 sheets of housing facilities, a total of 98 million and 208 thousand tomans. To pay. (ISNA)
The ceiling of facilities for other cities is 160 million tomans for singles and 320 million tomans for couples. Considering that singles have to buy 320 and married people living in these cities have to buy 640 housing facilities, singles have to pay 32 million and 736 thousand Tomans and married people have to pay 65 million and 472 thousand Tomans.