diff --git a/src/quotes.rs b/src/quotes.rs
index 8d82a32..5442026 100644
--- a/src/quotes.rs
+++ b/src/quotes.rs
@@ -399,37 +399,37 @@ impl YQuoteSummary {
 #[derive(Deserialize, Debug)]
 #[serde(rename_all = "camelCase")]
 pub struct YSummaryData {
-    pub asset_profile: AssetProfile,
-    pub summary_detail: SummaryDetail,
-    pub default_key_statistics: DefaultKeyStatistics,
-    pub quote_type: QuoteType,
-    pub financial_data: FinancialData,
+    pub asset_profile: Option<AssetProfile>,
+    pub summary_detail: Option<SummaryDetail>,
+    pub default_key_statistics: Option<DefaultKeyStatistics>,
+    pub quote_type: Option<QuoteType>,
+    pub financial_data: Option<FinancialData>,
 }
 
 #[derive(Deserialize, Debug)]
 #[serde(rename_all = "camelCase")]
 pub struct AssetProfile {
-    pub address1: String,
-    pub city: String,
-    pub state: String,
-    pub zip: String,
-    pub country: String,
-    pub phone: String,
-    pub website: String,
-    pub industry: String,
-    pub sector: String,
-    pub long_business_summary: String,
-    pub full_time_employees: u32,
+    pub address1: Option<String>,
+    pub city: Option<String>,
+    pub state: Option<String>,
+    pub zip: Option<String>,
+    pub country: Option<String>,
+    pub phone: Option<String>,
+    pub website: Option<String>,
+    pub industry: Option<String>,
+    pub sector: Option<String>,
+    pub long_business_summary: Option<String>,
+    pub full_time_employees: Option<u32>,
     pub company_officers: Vec<CompanyOfficer>,
-    pub audit_risk: u16,
-    pub board_risk: u16,
-    pub compensation_risk: u16,
-    pub share_holder_rights_risk: u16,
-    pub overall_risk: u16,
-    pub governance_epoch_date: u32,
-    pub compensation_as_of_epoch_date: u32,
-    pub ir_website: String,
-    pub max_age: u32,
+    pub audit_risk: Option<u16>,
+    pub board_risk: Option<u16>,
+    pub compensation_risk: Option<u16>,
+    pub share_holder_rights_risk: Option<u16>,
+    pub overall_risk: Option<u16>,
+    pub governance_epoch_date: Option<u32>,
+    pub compensation_as_of_epoch_date: Option<u32>,
+    pub ir_website: Option<String>,
+    pub max_age: Option<u32>,
 }
 
 #[derive(Deserialize, Debug)]
@@ -454,99 +454,100 @@ pub struct ValueWrapper {
 #[derive(Deserialize, Debug)]
 #[serde(rename_all = "camelCase")]
 pub struct SummaryDetail {
-    pub max_age: i64,
-    pub price_hint: i64,
-    pub previous_close: f64,
-    pub open: f64,
-    pub day_low: f64,
-    pub day_high: f64,
+    pub max_age: Option<i64>,
+    pub price_hint: Option<i64>,
+    pub previous_close: Option<f64>,
+    pub open: Option<f64>,
+    pub day_low: Option<f64>,
+    pub day_high: Option<f64>,
     pub regular_market_previous_close: f64,
-    pub regular_market_open: f64,
-    pub regular_market_day_low: f64,
-    pub regular_market_day_high: f64,
-    pub dividend_rate: f64,
-    pub dividend_yield: f64,
-    pub ex_dividend_date: i64,
-    pub payout_ratio: f64,
-    pub five_year_avg_dividend_yield: f64,
-    pub beta: f64,
+    pub regular_market_open: Option<f64>,
+    pub regular_market_day_low: Option<f64>,
+    pub regular_market_day_high: Option<f64>,
+    pub dividend_rate: Option<f64>,
+    pub dividend_yield: Option<f64>,
+    pub ex_dividend_date: Option<i64>,
+    pub payout_ratio: Option<f64>,
+    pub five_year_avg_dividend_yield: Option<f64>,
+    pub beta: Option<f64>,
     #[serde(rename = "trailingPE")]
-    pub trailing_pe: f64,
+    pub trailing_pe: Option<f64>,
     #[serde(rename = "forwardPE")]
-    pub forward_pe: f64,
-    pub volume: u64,
-    pub regular_market_volume: u64,
-    pub average_volume: u64,
+    pub forward_pe: Option<f64>,
+    pub volume: Option<u64>,
+    pub regular_market_volume: Option<u64>,
+    pub average_volume: Option<u64>,
     #[serde(rename = "averageVolume10days")]
-    pub average_volume_10days: u64,
+    pub average_volume_10days: Option<u64>,
     #[serde(rename = "averageDailyVolume10Day")]
-    pub average_daily_volume_10day: u64,
-    pub bid: f64,
-    pub ask: f64,
-    pub bid_size: i64,
-    pub ask_size: i64,
-    pub market_cap: u64,
-    pub fifty_two_week_low: f64,
-    pub fifty_two_week_high: f64,
+    pub average_daily_volume_10day: Option<u64>,
+    pub bid: Option<f64>,
+    pub ask: Option<f64>,
+    pub bid_size: Option<i64>,
+    pub ask_size: Option<i64>,
+    pub market_cap: Option<u64>,
+    pub fifty_two_week_low: Option<f64>,
+    pub fifty_two_week_high: Option<f64>,
     #[serde(rename = "priceToSalesTrailing12Months")]
-    pub price_to_sales_trailing12months: f64,
-    pub fifty_day_average: f64,
-    pub two_hundred_day_average: f64,
-    pub trailing_annual_dividend_rate: f64,
-    pub trailing_annual_dividend_yield: f64,
-    pub currency: String,
+    pub price_to_sales_trailing12months: Option<f64>,
+    pub fifty_day_average: Option<f64>,
+    pub two_hundred_day_average: Option<f64>,
+    pub trailing_annual_dividend_rate: Option<f64>,
+    pub trailing_annual_dividend_yield: Option<f64>,
+    pub currency: Option<String>,
     pub from_currency: Option<String>,
     pub to_currency: Option<String>,
     pub last_market: Option<String>,
     pub coin_market_cap_link: Option<String>,
     pub algorithm: Option<String>,
-    pub tradeable: bool,
+    pub tradeable: Option<bool>,
 }
 
 #[derive(Deserialize, Debug)]
 #[serde(rename_all = "camelCase")]
 pub struct DefaultKeyStatistics {
-    pub max_age: u64,
-    pub price_hint: u64,
-    pub enterprise_value: u64,
+    pub max_age: Option<u64>,
+    pub price_hint: Option<u64>,
+    pub enterprise_value: Option<u64>,
     #[serde(rename = "forwardPE")]
-    pub forward_pe: f64,
-    pub profit_margins: f64,
-    pub float_shares: u64,
-    pub shares_outstanding: u64,
-    pub shares_short: u64,
-    pub shares_short_prior_month: u64,
-    pub shares_short_previous_month_date: u64,
-    pub date_short_interest: u64,
-    pub shares_percent_shares_out: f64,
-    pub held_percent_insiders: f64,
-    pub held_percent_institutions: f64,
-    pub short_ratio: f64,
-    pub short_percent_of_float: f64,
-    pub beta: f64,
-    pub implied_shares_outstanding: u64,
+    pub forward_pe: Option<f64>,
+    pub profit_margins: Option<f64>,
+    pub float_shares: Option<u64>,
+    pub shares_outstanding: Option<u64>,
+    pub shares_short: Option<u64>,
+    pub shares_short_prior_month: Option<u64>,
+    pub shares_short_previous_month_date: Option<u64>,
+    pub date_short_interest: Option<u64>,
+    pub shares_percent_shares_out: Option<f64>,
+    pub held_percent_insiders: Option<f64>,
+    pub held_percent_institutions: Option<f64>,
+    pub short_ratio: Option<f64>,
+    pub short_percent_of_float: Option<f64>,
+    pub beta: Option<f64>,
+    pub implied_shares_outstanding: Option<u64>,
     pub category: Option<String>,
-    pub book_value: f64,
-    pub price_to_book: f64,
+    pub book_value: Option<f64>,
+    pub price_to_book: Option<f64>,
     pub fund_family: Option<String>,
+    pub fundInceptionDate: Option<u32>,
     pub legal_type: Option<String>,
-    pub last_fiscal_year_end: u64,
-    pub next_fiscal_year_end: u64,
-    pub most_recent_quarter: u64,
-    pub earnings_quarterly_growth: f64,
-    pub net_income_to_common: u64,
-    pub trailing_eps: f64,
-    pub forward_eps: f64,
-    pub last_split_factor: String,
-    pub last_split_date: u64,
-    pub enterprise_to_revenue: f64,
-    pub enterprise_to_ebitda: f64,
+    pub last_fiscal_year_end: Option<u64>,
+    pub next_fiscal_year_end: Option<u64>,
+    pub most_recent_quarter: Option<u64>,
+    pub earnings_quarterly_growth: Option<f64>,
+    pub net_income_to_common: Option<u64>,
+    pub trailing_eps: Option<f64>,
+    pub forward_eps: Option<f64>,
+    pub last_split_factor: Option<String>,
+    pub last_split_date: Option<u64>,
+    pub enterprise_to_revenue: Option<f64>,
+    pub enterprise_to_ebitda: Option<f64>,
     #[serde(rename = "52WeekChange")]
-    pub fifty_two_week_change: f64,
+    pub fifty_two_week_change: Option<f64>,
     #[serde(rename = "SandP52WeekChange")]
-    pub sand_p_fifty_two_week_change: f64,
-    pub last_dividend_value: f64,
-    pub last_dividend_date: u64,
+    pub sand_p_fifty_two_week_change: Option<f64>,
+    pub last_dividend_value: Option<f64>,
+    pub last_dividend_date: Option<u64>,
     pub latest_share_class: Option<String>,
     pub lead_investor: Option<String>,
 }
@@ -554,47 +555,47 @@ pub struct DefaultKeyStatistics {
 #[derive(Deserialize, Debug)]
 #[serde(rename_all = "camelCase")]
 pub struct QuoteType {
-    pub exchange: String,
-    pub symbol: String,
-    pub long_name: String,
+    pub exchange: Option<String>,
+    pub symbol: Option<String>,
+    pub long_name: Option<String>,
     #[serde(rename = "timeZoneFullName")]
-    pub timezone_full_name: String,
-    pub uuid: String,
+    pub timezone_full_name: Option<String>,
+    pub uuid: Option<String>,
 }
 
 #[derive(Deserialize, Debug)]
 #[serde(rename_all = "camelCase")]
 pub struct FinancialData {
-    pub max_age: u64,
-    pub current_price: f64,
-    pub target_high_price: f64,
-    pub target_low_price: f64,
-    pub target_mean_price: f64,
-    pub target_median_price: f64,
-    pub recommendation_mean: f64,
-    pub recommendation_key: String,
-    pub number_of_analyst_opinions: u64,
-    pub total_cash: u64,
-    pub total_cash_per_share: f64,
-    pub ebitda: u64,
-    pub total_debt: u64,
-    pub quick_ratio: f64,
-    pub current_ratio: f64,
-    pub total_revenue: u64,
-    pub debt_to_equity: f64,
-    pub revenue_per_share: f64,
-    pub return_on_assets: f64,
-    pub return_on_equity: f64,
-    pub gross_profits: u64,
-    pub free_cashflow: u64,
-    pub operating_cashflow: u64,
-    pub earnings_growth: f64,
-    pub revenue_growth: f64,
-    pub gross_margins: f64,
-    pub ebitda_margins: f64,
-    pub operating_margins: f64,
-    pub profit_margins: f64,
-    pub financial_currency: String,
+    pub max_age: Option<u64>,
+    pub current_price: Option<f64>,
+    pub target_high_price: Option<f64>,
+    pub target_low_price: Option<f64>,
+    pub target_mean_price: Option<f64>,
+    pub target_median_price: Option<f64>,
+    pub recommendation_mean: Option<f64>,
+    pub recommendation_key: Option<String>,
+    pub number_of_analyst_opinions: Option<u64>,
+    pub total_cash: Option<u64>,
+    pub total_cash_per_share: Option<f64>,
+    pub ebitda: Option<u64>,
+    pub total_debt: Option<u64>,
+    pub quick_ratio: Option<f64>,
+    pub current_ratio: Option<f64>,
+    pub total_revenue: Option<u64>,
+    pub debt_to_equity: Option<f64>,
+    pub revenue_per_share: Option<f64>,
+    pub return_on_assets: Option<f64>,
+    pub return_on_equity: Option<f64>,
+    pub gross_profits: Option<u64>,
+    pub free_cashflow: Option<u64>,
+    pub operating_cashflow: Option<u64>,
+    pub earnings_growth: Option<f64>,
+    pub revenue_growth: Option<f64>,
+    pub gross_margins: Option<f64>,
+    pub ebitda_margins: Option<f64>,
+    pub operating_margins: Option<f64>,
+    pub profit_margins: Option<f64>,
+    pub financial_currency: Option<String>,
 }
 
 #[cfg(test)]